^ And followed by Nigeria and even in India. They keep trying to manipulate cryptocurrencies especially BTC but they always failed on how many attempts.
The decentralized feature of BTC was made this digital currency becomes strong and even government can not stop this even banning is not a solution that their netizen will stop using BTC, they can still able use it through hardware wallet and use exchange like P2P and decentralized exchange.
Even if the internet will shut down, you can still able to transact BTC using radio wave transmission, through the air.
https://news.bitcoin.com/no-internet-no-problem-how-to-send-bitcoin-by-amateur-radio/

^ How lucky you are bud, it looks like from scratch and now you have gained too much from trading.
Unluckily, we are not the same, I stop trading during a pandemic because I have a priority job (I am a frontliner) than doing in crypto trading. But now, I did not regret it because I saw my portfolio increase the value of my holding, since then I accumulate BTC and other altcoins that affordable to purchase. During this bull run, trading and holding are probably the same way of gaining profit. If you bought BTC last year, that is a big profit now.

^ That is how a crypto investment works, there is always a risk if you don't know the perfect timing of buying. Both ETH and BTC are good for investment, if you don't know when to jump in, prefer yourself in a long process of holding your crypto asset because we don't know after buying it will down or up the price, no one really knows. You can also split your fund into two, the bigger percentage is on BTC and the less is on ETH which is all of these you can afford.
Nevertheless, you can watch out for the price movement, we currently on the bull market, and expected there is a short correction will occur after this.

^ I still have doge on my portfolio even I know that it was made a meme coin. In my own, dogecoin still worth it compared to scam altcoins.
There is nothing wrong if you are holding a small amount that you can afford, who knows dogecoin soon will pump up again and Elon Musk will tweet again about dogecoin for sure it will pump up the price. Nevertheless, Dogecoin is very common to use in most gambling sites that concern about low fees. I still have fate on this coin.

^ Defi projects are nothing if you will be compared to the ETH. Everything depended on the ETH and they are all forked to the ETH network.
How come the Defi projects will compete with ETH? All Defi projects are based on the ETH network and how come they will overpass the network.
It happens they only trending projects now just because of BSC and most commonly traders are on Binance, but all of them will not work without the ETH network. That is the reason until now ETH was in a heavy traffic transaction and it becomes expensive fees.

^ It is not easy to jump into crypto and doing trading without even have the knowledge and this is the reason most people lose their money because they are chasing profit. In my own, it is helpful if you already understand and have skills in trading but if not, better to study first before having a decision on crypto trading. Nevertheless, I don't agree with this, you need to find a job first because trading is very risky, and do not rely on your family budget to gamble in trading.

^ Not on the list because that list was on last year and probably not updated.
The most interesting and trending projects now are Defi projects, staking, and swapping. Uniswap becomes popular and gained too much attention from most investors. But wait, also Binance Smart Chain projects are now very hot and almost traders talking about. Nevertheless, we must be careful because not are all legit, there are too many scam projects pretending a real one or avoid the pump and dump project. DYOR is a must.

^ I even dont know bud but I think yield farming and staking platform?
There are too many projects of Defi now, to be honest lately, I have deep researched regarding this but all I have got is a headache. 
It is too risky to decide what is the better. Nevertheless, for now, I still exploring these many projects on Defi (what is apeswap and what those other projects on BSC) and I suggest do the same as yours because we have a different perspective way on how to invest. Or else, I will stick on BTC for the playing safe in crypto.

^ No, they are not. Do you think a stable coin will grow like that? they are a part of 100 top coins on CMC.
I only believe in BTC that will grow massively without a specific time. Dont waste your time on altcoin because they grow once BTC dominance will be skyrocketing on CMC. If there is altcoin surpass the BTC dominance, I am sure they are a part of pump and dump coin which there is no actual organic growth, they are manipulated by whales or probably on most influencer people. Nevertheless, if you will put your investment into BTC 80% and top 10 altcoins 20% will probably have a chance that you will earn, not 10k% but at least there is.

^ That is the point that BNB is good for now, because of their exchange Binance. Because of the Binance chain protocol that built by Binance through ETH smart contract, it had really gained popularity of their coin, the BNB.
Nevertheless, I don't sure if this coin is good for long-term investment rather than I will choose BTC. What if the Binance exchange gets hacked someday, do you think the BNB coin will still on the top? I don't think so, probably, for now, it is good to invest for the short term. However, that is my own opinion.

^ Definitely right, there is no way to determine the price of new altcoin, besides it is always risky if you are just hoping it will increase without proper having research. Because sometimes new altcoins will becomes shitcoin after it will be listed on the exchange or probably the team has abandoned the project. So we really never know what will happen, but there are signs that the project remains good and it will increase the price if the team aggressively continue developing such project and listed into big exchanges. At some point, as an investor, we must know this possible scenario.

^ For now bud it is CFNP, it means Close For New Participants and probably it will open in the next round of the week. (if there is who leave or kicked out)
On the spreadsheet, there are 20 participants overall in different ranks.
Nevertheless, you can also read the OP thread for further information.

^ Probably because ADA price was following to ETH bullish trend before, but now, it was defeated by the dominance that made by ETH at this moment and we saw that price slowly going down. But I did not lose hope, ADA still a good project and I still keep holding them on my portfolio. Because I believed that the crypto market price at the end of this year will create a new ATH. Nevertheless, if ADA won't make it, at least I have already set my selling price of 10% getting profit for the sake of my initial capital.

^ Definitely right, this is very dangerous to the holders, if everyone decided to sell their ETH. There could be a huge impact of the price because they are holding a huge amount of ETH, we can consider them as a whale too and we must watch them out.
Nevertheless, I have doubt that ETH struggling to reach $2k, probably because of the huge fees that no one traders will use ETH on trading. It will contribute to increasing the price though. If volume 2.0 will solve this problem let us just give hope.

^ But not all can cover by the BSC network, investors still use ETH in the public sale. That is definitely right, small investors are preferred on small and cheaper fees and probably this is the reason that recently the BNB coin was skyrocketing last month on the third place behind ETH because of the useful reason, the gas fee. I heard a rumor that volume 2 of ETH was not yet fully launched if this will happen, probably the improvements include the gas fee problem which is everyone is now suffered on this.

^ My answer to your question.
1. I do invest in price in the market when it has a bearish trend
2. The usefulness of tokens is very important to invest and knowing this is very important to avoid hype projects.
3. No, combine that two options for a better result.
4. Invest in what you can afford for long-term or short-term investment.
Nevertheless, the word DYOR is very important when we talk about investing to avoid possible losses or probably a project that will turn out to exit scam later.

^ This is what I always advise all newbies that want to invest in altcoins, don't follow the hype project because they only have a short time of existence. Follow the real project with a mass usage that will surely grow organically and surely will gain profit though in a slow process but it is continuously growing up. In a long-term investment project should those coins that already existed and proven that there is no hype that happen.
Nevertheless, stick to BTC and ETH investment, they highly have a good potential that will grow more the price even though we are in a volatile situation.

^ Possible, but if you will try to look at the BTC transaction in mempool, the most likely weekend does not have heavy traffic and probably I am guessing that most traders on weekend have a vacation or there is an important matter than doing trading that makes the market becomes a trend. But when it comes to office hours, I noticed there is heavy traffic per transaction in BTC and ETH. Nevertheless, theoretically guessing, there is no specific date and time when there is a trend. It will always have if the price in the market goes up.

^ No please, it will probably there is a victim and probably you are one of them. That is a scam to me, because anytime when you have a mistake in their forecast your will probably lose your fund. Just like what happened to my friend before, he was told me that he joined a pump and dump group in the telegram, he said, he will make an advantage always, he sells early as they announce pump altcoin. But later on, it does not work, instead, he faced a sudden loss of his initial capital of almost 50%.

^ Probably it is possible, as we know this Elon Musk how clever he is when it comes to his investment and probably I think there is no custodial exchange or wallet that involve with their BTC investment. So, using a hardware wallet and hold on to his own control will probably the common choice for them. But probably I think Elon Musk hired a close on him that expert on storing BTC. I read lately about the free wallet that he threw negative feedback and that was I think the time that he is searching different BTC wallets. Nevertheless, they are right, that is none of our business and every investor has a right not to publicly revealed their assets.