Parents don't always deserve respect

My mother married a man when I was 3 years old, she had known him for three months and knew he had gone to jail for molesting his brother and sister, when I was 5 he raped me and from then on he sexually, physically, verbally and mentally abused me my mother knew this was happening, I told her multiple times he was sexually abused me and she never believed me she saw and assisted in the physical, verbal and mental abuse, she had a baby when I was 4 another when I was 6 and another when I was 8, she may have given birth to them but they were my babies. I bathed them, cooked for them, cleaned for them, disciplined them and took all the beatings for them. My mother has only recently stopped sleeping with my stepfather and is now divorcing him because he can't get an erection... anyway this was just a vent because I'm told so often how awful of a person I am for having no respect for my mother, but I am aloud to, I'm aloud to hate her, I'm aloud to never want to see her again. Those people that say those things have no idea what she put me through and she put me through it just so she could have a good sex life that's literally the only fucking reason! So you people may just see some bratty 15 year old that knows nothing but I'm proud of myself for making it this far because if i didn't have my siblings, I would have been dead by the age of 12.