I'm looking for a movie, help? (maybe a book if it fits the criteria exactly)?

[Ananimous]

so yeah i really want to watch a dramatic movie where the main character has some sort of personality disorder or what ever, i really want to watch like a depressing movie where the main character(s) have serious mental issues (not looknig for anything inspirational, not looking for down syndrome movies) I would like to watch a drama where the main character is in distress with internal conflicts, may also be acceptable