There are a lot of tutorials on Youtube you can use keywords about investing in Crypto but I would like to remind you that do not fall for shills you can stumble some video tutorials but they are adding coins of their choice for you to invest, don't bother with your the coins they are shilling just concentrate on the tutorials, you can have coins of your own to invest best on your research.
the problem is that people who actually have expertise in investing and trading anything in general aren't going to spend their time making youtube videos guiding others, and the same people (aka experts) would definitely never waste their time give advice on what to buy.
when looking at youtube videos, specially those involving trading cryptocurrencies everyone that i have seen so far has been created by a newbie or a scammer trying to pump the shitcoin they had bought.