1, Never listen to YouTubers they are bums .
2. BTC is the king. The ratio should be like BTC/ETH 80% rest alts.
3. Make a decision - When big opportunities knock the door make decisions fast. trust your gut. Examples are Elon musk shill dogecoin first time. Facebook change the name to Meta. You have to make a decision when is happening the same day.
Like when you have the opportunity to go out with a girl you like. Make a decision now. All these waiting and thinking is killing you. Think fast.
listen to you
It's not only YouTubers that you should avoid but all crypto influencers on every platform, you have a responsibility to do your own research and also invest wisely.
Personally, I don't think BTC has any rival however it should not stop people from looking for good projects that can maximize returns.
Being decisive is good but I think you're trying to say that one should be well updated and join the trend early because late adopters are usually burnt.
Taking your profit is also vital in Crypto otherwise you'll just be going through the cycles.