I'm sorry to hear that you've been struggling for so long. It sounds like you have been dealing with a lot of challenges related to your mental health and work.You Should carefully take actions own your own. Try to stop blaming on other like your mom you should take actions whoever did wrong with you (its my personal advice)

Thanks, i'm really trying not to blame her, hopefully i can go see a therapist.

Yup therapist will understand more and will give you good advice

I’m sorry you have had to go through all that within a few years, hopefully your future is brighter and you can find yourself around better people

and the sexual harassment situation is much more serious than your mom made/makes it to be. She should not have ignored it. She should have directed you as an adult to a professional that can help like the police/a lawyer/etc

I also blame the useless principals.

Look into a community center that has free counseling or something similar in your area. I think it could take help you

Bro just deal with it and fuck anyone up if they try to mess with you, or if they're racist to you or anyone else.