well.. i had a very lonely childhood, i grew up by being bullied and i had no friends, i was raped by my father and my mother was an foreigner and she didin´t understand what i said, i was all alone, until i was 10. i moved into a foster family and i feel a little bit better now. i am saying a little bit better because i have a problem with my past, i might have multipel personalities, they come up from certain triggers and i will talk about them with a therapist, i hate this because my father was a psycho, and i don´t want to become like him. but i can´t help it, mental disorders can be passed on by genes and it is shown in the adult hood. i am 18 now and i started to feel bad now. i am trying to cope with my own personal demons cuz i have flashbacks.. i hate this all..

Well, technically, yes its very possible that your mental illness is genetic. You know whats also genetic? Having two arms and two legs. Jack the Ripper also had two arms and two legs. That doesnt mean everyone who has two arms and two legs a serial killer.
The same way having the same mental illness as your dad wont make you a bad person either. Just go out in the world and be a good person. Or three good people.

You definitely need therapy though but you also should share this to your foster family if they really made you happy too b/c they'll support you. Even though your childhood wasn't the best and you felt alone back then don't let it trap you from having a better future. Just make sure your disorder is stabalize b/c you don't want to cause harm to anyone including yourself and regretting it later. You need therapy so reach out to it and don't be afraid to find that help.

Your thinking about this too much if you want to be a good person then do good deeds, just think of what you have to do stop thinking of useless factors like that
THINKING TOO MUCH the answer is so clear if you want to be a good person then do good things