So in one of my stories that I'm working on the main character is very messed up in the head he didn't always use to be but in his past he basically went through his own odyssey thats akin to Oliver Queen's(from Arrow) five years on a hellish island. Except my main character was framed and put in a prison slash mental institution where a lot of horrible things were done to him and he became really unhinged. Basically a lot of what he endured ranged from rape, mental torture, garden variety psychotic experiments, and that was just in the first year of his odyssey back ground so you can probably imagine how screwed up in the head he is. He's tempermental, an alcoholic, has a girlfriend whose an addict and he's abusive. The irony is he's the good guy and his villains make him look like a well rounded guy the bad guys are that crazy. The story is like Outlast, Supernatural, and Constantine rolled into one. I just don't want too go to far with his crazyness because he's not very stable and he knows he's but refuses help because he understandably has issues with doctors. He also does a lot bad things and while I want to make it clear he's damaged both mentally and emotionally I don't want him cross a line where readers will no longer root for him. So how far is too far?