Hey there Patrick, sorry to hear you're having a tough time.
I've tried to write some guides for beginners at https://fedi.tips
There's also a quick start section at the top of the page which covers the most common questions.
There's a guide about how to find people to follow at https://fedi.tips/how-do-i-find-accounts-to-follow-on-mastodon-and-the-fediverse-how-do-i-find-my-friends/
If you have something specific you want to ask about, feel free to @ me!