Are there any Youtube videos that will walk me through how to read an actual book? it's been so long... I don't know if I'll remember how to do it without some internet star to show me the way.

There you go: https://www.youtube.com/watch?v=pQHX-SjgQvQ

Maybe, but you can certainly find someone on twitch streaming themselves reading a book. You can follow them and tip them accordingly.

While I think reading is great for attention, you shouldn't write off meditation. The controlled breathing involved has been shown to be particularly good for stress reduction and improved vegal tone!