it kind of sounds like your using your personality disorder as an excuse to be rude, maybe when you get better you should apply again?
Multiple Personality Disorder stopped being a diagnosis decades ago. Since the DSM-IV in 1992 it's been called dissociative identity disorder. It's super super rare. If this is seriously you're diagnosis, I apologize for being so doubtful but I've dealt with a lot of kids online who pretended to have it or have pretended to commit suicide . I hope you find some better coping skills and wish you the best in the future.