It is really sad to read your story.. I'm so sorry!

Mine is a little similar, but I'm not sure if I'm right to hate my parents..
I have Borderline personality syndrome. My parents don't know that though, they think I'm just a horrible human being. My mother often cries and yells that she has so many regrets even putting me into this world. That she doesn't deserve a monster like me.
She used to (and still) convince me that I have a bad personality and I would never be capable of being loved by someone else. She also kicks me out every month or so.

My grandmother is convinced my upbringing is the reason of my disease.
I also blame my parents for it, but then again, how can I be sure they are to blame?

The question is; have I develloped this illness because of the way my parents treated me? Or was it heritable? Maybe just born with it? And am I, solely, the one causing all the trouble?