One of the reasons git is "hard" is because too many people read crap like this, which rapidly gets outdated and often contains more bad advice than good. Read the manual! It's not dry at all, and you'll learn a lot. Pick a random git command and read its man page right now.

https://git-scm.com/docs

Read the git book, too. It's free and serves as a good introduction and helps you learn which man pages you need to consult and when. You don't need to read the whole thing, but the first 3 chapters are indispensible.

https://git-scm.com/book/en/v2