Just don't get swept up by the hype and don't be swayed by FUD, that's the two of the most important things to avoid when trading Bitcoin or any crypto and most importantly, aside from those two, don't sell based on your emotion. Once you've entered a position, you should exit that position based on whichever strategy you have in place. If you hold a crypto (ex. BTC, ETH or LTC) and these crypto falls in value, you must evaluate the situation first before selling your holdings and yes, journaling really helps.

Here are the few tips I can give for before you start buying Bitcoin/Crypto:
[1] The first and the foremost thing that every newbie should do is to study entirely about Crypto. Getting to know all the details about cryptocurrency and blockchain is important when you are investing in it for the first time.

[2] You should understand the transaction process; The very first time you create your Bitcoin wallet, you will be given a private key that can be used to access your data. As a beginner, you must understand that all the information related to your money will be available on the public ledger, and nothing is going to be confidential. Only the username and the password of the Bitcoin wallet will be e kept as private information. So, you must not be surprised if the transactions that you are getting displayed on the dashboard of the public ledger.

[3] Choose the right Bitcoin exchange; You’ll create an account and enter a payment method. At reputable exchanges you’ll be asked for information such as your bank account details or a debit or credit card. You’ll then need to prove your identity with a driver’s license, ID or passport. After you’ve been verified, you can start buying Bitcoin with your chosen payment method, transferring it to your personal wallet and watching with greater interest as its price fluctuates.

The three you've mention was currently on the top 5 of coinmarketcap. But here's my Top 3 coins/tokens that you might consider investing/trading: BTC, ETH & LTC, I just added Litecoin coz' the two you've mentioned are my favorite too. Why Litecoin? coz' like Bitcoin, Litecoin is decentralized. There's no centralized authority, building, or headquarters for it. The currency flows freely on the internet. Like almost all digital currencies, litecoins are also produced through a process called “mining.” And the simplicity of Litecoin mining could actually steal Bitcoin miners. It's true that Bitcoin is worth significantly more than Litecoin, but most Bitcoin mining is carried out by supercomputers. The algorithms have become too hard for everyday miners to crack. This means that many miners who are tired of struggling over Bitcoin may end up transitioning over to Litecoin...

That strategy is old buddy. You should try Futures trading. Good exchanges like Binance & KuCoin already have that. You should check BTC, ETH & LTC pairs on KuCoin as they have good trading volumes and low trading fees there.

I'm new in investing Dogecoin and I'm one who's riding on the FOMO rocket and I guess the madness for DOGE won't stop coz Elon Musk and his company Tesla invested more crypto (BTC). He'll continue to make contribution on Dogecoin's price no matter what happen coz' he's one of the early investor of that what so called meme coin 

Every after BULL, expect the huge correction coz' sell pressure always comes. It depends on how good coin/token to hodl or short trade. If you're waiting for the correction before you'll set your buy orders I would suggest you to buy these 5 coin/token on CMC (BTC, ETH, LTC ,XRP & DOT)

Here are the few key points about the news:

• Tesla announced in an SEC filing Monday that it has bought $1.5 billion worth of bitcoin.
• The company also said it would start accepting bitcoin as a payment method for its products.
• CEO Elon Musk has been credited for raising the prices of cryptocurrencies, including bitcoin, through his messages on Twitter.

Two weeks ago, Elon Musk added the hashtag #bitcoin to his Twitter bio, in a move that helped to briefly push up the price of the cryptocurrency by as much as 20%. Two days later, he said on the social medial chat site Clubhouse: “I do at this point think bitcoin is a good thing, and I am a supporter of bitcoin.” Bitcoin prices surged to new highs Monday following Tesla’s announcement, reaching a price of at least $44,200. Tesla shares were up more than 2.5% in premarket trading. Tesla warned investors of the volatility of bitcoin’s price in its SEC filing.

Where do you guys think Elon store/trade his Bitcoin? Does he have a plan on supporting other coin/token or a cryptocurrency exchange aside from Bitcoin & Dogecoin?

When ETH reached another high of above $1,600 last Feb. 4, the growing price has been steadily driving transaction costs higher too, but it was started in early January 2021 when Ethereum broke its previous record of above $1,400. The latest spike in gas fees has had a massive impact on a number of decentralized finance projects, with some DeFi transaction fees surging above $1,000 which is kinda crazy Also the fees on major decentralized exchanges like Uniswap and SushiSwap surged to abnormal levels of between $40 and $75. I transferred my ETH temporarily on CEX and trade it there, so far the gas fee is lesser compared to others I've tried.

I guess doing the opposite which is selling your XRP and turning it into LTC might be the better idea? Coz' LTC price movement is more profitable than XRP. XRP price fluctuated in an un explainable way and then dumped again so don't expect too much on XRP right now coz' they didn't solve their SEC issue yet.

Since 2018, I trade and hodl most of my coins/tokens especially BTC on KuCoin.
[1] They offer low trading fees and can become even lower if you have some KuCoin Shares (KCS).
[2] KYC is not compulsory unless you'll withdraw above 5 BTC a day. But KYC is for your protection too incase you've forgot your log in credentials.
[3] Most of the top tier altcoins/DeFi can be found on KuCoin Exchange.

I think XRP being on a bull state is good why? Because everyone we'll see the true meaning of being a good crypto coin/token. Even top cryptocurrency exchanges like KuCoin launched a trading campaign for XRP(for the second time). I'm not that sure if this was affected by the influence of WSB but I think XRP will rise once again because XRP community are doing their best for XRP to keep up on the market.

If you bought both BTC & ETH a year ago, and still thinking if you should transfer those BTC into ETH then maybe you missed the new ATH of both coin/token? If you still holding both and getting FUD because it's on the verge of correction, what you should do is keep on holding those 'til another ATH has come.

One of the most important thing you need to avoid when you're trading Bitcoin or any crypto is "Peer Pressure". Not marching to the beat of your own drum is one of the beginner mistakes every crypto trader should avoid. By the time enough people know about something for you to feel pressured to get involved it's already too late, the tipping point has already been reached. Sure, you may be able to ride a high for a few days or even a few weeks, but it's a good sign a bubble's about to burst when the people in your life who know nothing about crypto are talking to you about crypto.

I'm currently using KuCoin Trading Bot, you can access it on KuCoin App for me it's very easy to use and they have most of the trading pairs in their spot market. They also offers Dollar-Cost Averaging (DCA) trading on their trading bot.

And now Elon Musk's bio on twitter was edited with the word #Bitcoin. I wonder if BTC can go beyond its ATH because of that tweet.

I guess about 90% of people have the same reason why they want to get involve on crypto/stocks trading, and that reason is to become rich. There are different kinds of trading in crypto and for me, if you want to get rich faster you should try Margin or Contract Trading. If you have good capital then go try Grid Trading Bot or DCA. If you're looking for an exchange that have those kinds of trading I would suggest you to check KuCoin. Exchanges like KuCoin have a great trading volume of most major coins/tokens: BTC, ETH, XRP, LTC

Some will suggest you not to buy right now coz' the price of BTC is too high. They're just saying it coz maybe they bought their BTC way back years ago and made some good profit in today's price.

But others like me would suggest you to buy while you still see BTC below $50k price coz' we'll never know when is the next ATH, don't get FUD of corrections it's very normal.
If your planning to do day trading then wait for it to dump below $30k. Or If you'll just gonna hodl it and sell when your profit becomes 300% or more then I suggest you to buy BTC while you still can.

I'm a new user on KuCoin and I saw some of people on Telegram group talking about that trading bot thing. When I checked it using my Kucoin app, the minimum investment on most well-known trading pairs are too high, Some of it are 100 USDT in minimum. When I asked someone regarding with that matter, they say it will be fix soon. If the minimum is not that high I'll try to set trading bot for ETH or DOT.

If you're a hard trader or a daily trader I suggest you try grid trading bot. The alts you've mentioned have a great volume in every top tier crypto exchanges like KuCoin,Binance etc.

Also trading via grid trading bot is very easy now, you just have to set your bot on a good entry price and your money will be fine.

Btw here's the link if you wanna see how good the volume is for most of coins/tokens on KuCoin especially BTC & ETH:
BTC-USDT: https://trade.kucoin.com/BTC-USDT
ETH-USDT: https://trade.kucoin.com/ETH-USDT

Upon reading some of replies, most of your answers have one answer in common which is volume and/or liquidity and I guess that's the most important factor to consider when choosing the right crypto exchange. And by the way, I already checked KuCoin last time coz' a friend of mine suggested it and I'd say that their menu's are easy to navigate and they also have lot's of campaign which I don't know how to participate yet.