I went through almost same thing, I was raped and my mom never believed me which was the difference, I know things are hard but I made it through you just need to rebuild your self esteem which can take awhile. I went into kickboxing and was already playing soccer, I lost alot of weight(cause I was eating my emotions and gained alot weight) I built a self esteem and was able to carry my head high and it felt good. I also have slashed my arms to the point I got admitted to hospital because I was suicidal and really there is no point when you realize how much potential you have.
I wish I could help you go through this you really need to talk to someone and get into something you enjoy doing sports, martial arts, crafts etc, I also sing and play guitar and I found that by writing songs or just singing it helps and makes me feel brighter. Somedays will be really tough but keep your head high, I was also in an abusive realtionship that ended in me getting pregnant and I had an abortion because the father had raped me and violated me in a way I cant explain its like a shower never cleansed me of the dirt and I felt so dirty. After all the stuff I went through I stopped dating men and started looking towards woman but I wasnt game enough for it, ironically when I least expected it I met someone who helped me get off drugs and turned my life around and he is now my bestfriend and husband.
I'm 21 and to be honest, i'm proud that I survived the bs the world put me through and I still go through it till this day but I know how to deal with it alot better.
take care and lotz of hugs
jess