MyMonero wallet is what OP used, it's an open-source wallet and I think you'll have control over your keys but the difference is this wallet doesn't have a built-in exchange feature, you need to choose a third party exchange when you want to diversify into other coins like Monero converting to Bitcoin.

CakeWallet would be the best wallet for Monero because it has an exchange feature itself that supports Bitcoin and Litecoin and as I've heard it's open-source also.  Or else, the best of all is a hardware wallet like Ledger Nano S wallet with full node support.

I've suspected also that this isn't a problem with the wallet that OP used, it's on the exchange, just contact the support of that exchange as stated above.
I hope OP will come back and give an update here.

Diversifying is always good if you know what coins have a potential for long or short-term holding.
But IMO, I'd like to stick to Bitcoin and give a small portion to Ethereum in my portfolio.  Both coins are good to me and have the potential that could give a profit someday.

However, every time when there's a bear trend market, it's good to increase the amount in your portfolio, buying in a DCA way will potentially make a profit.  For now, I discourage you not to sell your asset since everything was down the price in the market, just wait until your profit were there and never sell under the price.

We've heard here a lot of stories about Bitcoin acceptance as a payment on their place and I hope they understand how volatile Bitcoin is to know possible risks on the price.  Glad to hear a story like this, it will help the community of Bitcoin go strong and give awareness to the people in your place.  But one thing just to make sure, understand how Bitcoin works because it's very crucial in your business, all transactions are irreversible, once you've hit the send button and have at least 3 confirmations on the network, you can't undo it.

However, it always has an advantage if we've knowledgable about it, I suggest you study it.
Good luck with your business.

I hope that you understand too that the market is unpredictable, no one knows when the bull or bear market season.

I tend to agree with the comments above, sorry but we're not yet in a bull trend right now Bitcoin still struggling for the price to pump up.  Every time when there's a resistance, it will not hold it longer there's always a correction.
But we're on the same side, hoping that Bitcoin will have a bull market trend within this year, I suggest you not look at Bitcoin price daily in a chart, instead, invest for a long-term purpose.  Or, it's time for you to invest since there's a correction happening on Bitcoin price.

That's why from time to time, it's become tougher to own a whole number of Bitcoin, it always matters on fractions, and the more it will becomes expensive it will become the lesser amount in fractions that you can able to collect.

Sats or millisats will become a valuable fraction on that day.
But I have a doubt not all become holders, there will surely be short-time holders that will anytime sell their Bitcoin in a short period of time and can't able to hold it in a long run.

I tend to agree and there's someone who created a thread of Bitcoin table unit which I thought before sats is the smallest fraction of Bitcoin.

The best answer could be this, aim for a target profit while holding it for a long term, in that way, you'll surely earn profit and if you want to reinvest, just wait for it when there's a market correction.  Wise investors can extend their patience and wait for a perfect time when to invest and when to collect their profit and if your profit were there, why not take it and reinvest when there's a correction?

Because of the high volatility of the market especially Bitcoin, we can make a profit, there's a real profit if you know how to manage when the price fluctuates.  But if can't able to manage it, I recommend holding for a long term is an ideal way to make a profit.

It's a very simple and easy-to-use wallet, it's also safe to store your Bitcoin compared to this close source wallets, for a free safe wallet just go for Electrum.
All open source wallet is good to use to avoid such problem, most likely those custodial wallets following the government's jurisdiction which might the reason OP has been experienced.

From Coinbase, you need to transfer first your coin to your Electrum wallet and then you're free to send it anywhere without thinking that you send Bitcoin to a sanctioned country or company.  It's good to remember always this saying, Not your key, Not your coins.

Yes, possible.
Since PayPal allowed users to withdraw their coins to an external wallet.

This can bring a good impact on the market price since Paypal is also a large company.  But those people who only don't know how to purchase crypto in a better way, IMO, I don't like to use Paypal since they are heavily KYC required and also have high fees for purchase and sell amount.

All in all, it's still good news.

The bear market it's not over yet, though there's a small resistance from time to time it will create a correction like we experienced so many times.
Bitcoin price doesn't have infinite growth and every time there's a bounceback on the price it will also have a small correction but no doubt in the end it will create an all-time high price.  So I voted No.

You've asked if it's the right time to buy, my answer depends.
I'd rather suggest you buy in a DCA way which is pretty safe for wise investors who are always afraid when the market pump and possibly panic selling.
Holding a long term would be better than worrying every day about the market price.

Draw support in your conclusion as technical analysis or any fundamental analysis that can be the reason for the surge in the price.

It might BNB have potential among them all, but remember the price of these altcoins will always vary on the price of Bitcoin, and we noticed that it will swing upon the price movement of the Bitcoin.  Expected there's a drop in the altcoin price when Bitcoin dumps the price and it will go up, expected altcoin price will surge too in the market.

However, you picked good coins which is the potential can make a profit there.

That's insane, it's a nonsense requirement of KYC, though it's hard, but possible the photo could be faked.

I didn't know what happen most in gambling because ain't an active poster there but I think this something just like a loophole to them, a kind of a trap and it seems they wanted to delay or if you can't comply the requirements you can't withdraw the fund, I tend to agree with the comment above pointed out by examplens.

It's fine if all of these are stated on their terms and use, at least you know that you may encounter this when you want to withdraw your money, but if not, it seems something shady to me.  Upon using any platforms out there, just make sure you understand the terms of use.

I have been following this reference as my crystal ball on predicting Bitcoin and one of my references in guessing the price for how many years which I think OP technical analysis is most likely relevant.

It shows not only $30k but it's $31k at the start of the 4th quarter of this year.
But it seems not good, after that resistance, it will bounce back again which I think will happen as we noticed that after the Bitcoin price is pumped it will have a correction.

There are too many of them and it's a long story if I drop it all here.

In general, I really appreciate that I found Bitcoin, though it wasn't early as it was a creation day at least it makes a my life change and everything.
From the word "decentralized" until such it has a rule of "Not your keys, Not your coins" which is what I've learned a lot.  Financial freedom was an outstanding achievement that I met when I was found Bitcoin and also be thankful that I'm here in the forum which I think I'm also being a part of history soon.

To tell you frankly, I didn't regret Bitcoin came into my life.

Yeah right, skill in coding plus technical knowledge on crypto which I doubt is the only OP need.
Technical knowledge is on the internet and it's everywhere that you can obtain since you already know about coding it's easy for you to understand and pursue your goal as a developer.

All information was given above, just have research on it, everything is on the internet and sometimes you need a Google search to answer your question or the best is since you're here in the forum, don't be shy to ask a question.  Glad to hear someone like you here in the community.

Exodus IMO could be fine but I didn't agree with the Trust wallet, that's a close source wallet that seems not to be trusted.

Just go for the hardware wallet that you may find it here, [BIG LIST] Hardware wallets (80+).
That's pretty safe than the software wallets that you've mentioned, as long as you keep the private key safe then, your assets must be safe too.

My second thought is, that altcoins aren't deserved to hold for a long term, they usually won't survive years as I've noticed, diversify them into Bitcoin if I were you is a wise decision.

Trading isn't easy making money, everything turns crucial if you don't have knowledge of it. 
OP might be misleading those greedy people who thought that it's easy to make money in trading either of what strategies you've used. 
Salary?  Trading isn't considered a job too.

It seems to gamble IMO if you've zero knowledge and diving into trading hoping that you'll earn a profit.

Great, I like those newbies on crypto who are willing to learn first about security and privacy which is very important in the crypto world.

If you want to dig more research and gain further information I want you to read this thread, there's a lot of information that newbies must know before they jump in investing crypto.  It's an advantage for crypto holders if you've knowledgable enough technically and fundamentally when it comes to Bitcoin.

As I'd say, stay vigilant at all times, keep your valuable things safe and be responsible for them.

Each one of us has its own strategies on how to make a profit in the market, it always varies on our decision on which position is most profitable.
It could be there's a pattern in the market movement but that gives a guarantee that you will guess it right, some of our predictions lead to a failed outcome in trading.

So choose your best trading strategies, change them if it will not work, and have consistent losses.
Mastering sometimes helps and doesn't rely upon it, you should always have an exit point to avoid further losses and stop-loss should be the best strategy after all.

That's why I prefer investing in Bitcoin compared to making a profit on trading, buying in a DCA way is pretty good as of now IMO.

In most cases, those scammed and stolen funds aren't recovered while the scammer let the funds sleep in the wallet for how many years once the address is reported as a scam.  But I heard that some of the stolen funds have been traced through the help of blockchain analysis, Chainalysis a platform that helps to investigate blockchain transactions but of course, it's another cost, and if you're willing to spend another amount for this.

It's a 30% chance that will recover your lost funds, so be careful with it and keep it like you once of your valuable stuff.
Always remember the golden rule in the crypto space, Not your key, Not your coins.

So many suggested above about Metamask wallet and that's the wallet that I have used right now, you can also directly use the Binance Chain wallet which you can download on the Binance website.  There are too many tutorials on Youtube but still a good thing you've asked for an idea here in the community to enlighten you on which you'll gonna pick aside from Trustwallet.

Well choosing the best wallet for Binance Smart Chain might a good option if it is an open-source wallet and here is the list, 14 Best Wallets For Binance Smart Chain.