Well, my father is a bipolar alcoholic and addict.
Most of my mother's side of the family either has problems with anger or depression, usually both.
I was pretty angry as a child, during my pre-teens that anger became controlled and turned into depression, but I'm over all that now.
I used to take meds for A.D.D., but it really messed with my eating habits so I'm off it now, and I'm actually performing much better in school without it, second in my class, would be first if it wasn't for the math, I despise it in all its forms.
I still take anti-depressants, though I don't think I need them as they didn't help all that much when I was depressed, and I'm probably more happy right now than I've ever been in my life.
I've never done any self-injury or anything like that, but I know a good amount of people that do/did.
And about two out of three people I know have A.D.D.
About two out of three people I know also suffer from a terminal illness known as "stupidity"