I had a similar experience and I dropped out of high school at 14 for a GED because I couldn’t handle it another day. And then college at 22. And then another university at 31. Now I still struggle with the most basic things because I’m only just figuring out why I didn’t get to learn how to deal with trying to exist growing up. It’s very hard and as an adult there’s even less help. I’m very lucky to have an understanding partner and a good therapist because I have no other friends or family and I spiral often. If only someone had told me as a kid, I can’t say I’d be that much different now, but at least I wouldn’t be spending so much energy on trying to figure out what all went wrong back then and maybe I’d have some skills that makes functioning or communicating a little easier.
In addition to the other suggestions I would recommend finding Alton Brown’s show Good Eats. He explains why and how things work in an entertaining way, sort of like Bill Nye for food science.
I grew up watching him, in addition to the practical experience I had with family and restaurant work, and I still find his teaching and recipes invaluable.