How do I become more media literate?

I want to become more media literate and learn how to do things on computers, I can do basic stuff but I want to get to know the internet deeper like the Tehnical side of it, I ​ know the stuff I don't know. Is there any channel who teaches stuff like this (on yt, Odysee, Peer tube ect ect) ​​​? Im a teen and I school has taught me jack, I know how to download stuff through yt to mp3, ​watch movies on pirate sites on alternative browsers The basics, but above that ​​like I said I don't know what I don't know, and this is sorta my starting point. If this isn't the right subreddit for my question can yall point me to the right one?