Hello TheDepressedArtist: What you wrote sounds similar to what I experienced years ago when I was in school. I was bullied, both verbally & physically, by a gang of older boys. Everyone, including my parents, knew what was going on. But nobody cared. Some of my mental health problems started well before this. But this experience probably drove them even deeper than they were already. The teachers at my school were just a bunch of worn-out old hay-burners who wanted to be there even less than I did, which is saying something!

I've never recovered...
I wish you well...