Allen,
About two years ago I dated a girl who had been through some similar shit.
At the time I knew her she was 23. She finished high school and got married at 18. She had a baby soon after and then got divorced at 21.
her husband was beating her so she finally got out. Her father used to beat her when she was a kid. No sexual abuse, but from what her siblings tell me, he beat her pretty bad.
She was one of many children, in a poor southern family, with an alcoholic father. He beat all the kids, but of the children, she was the smartest one. Smarter kids often get it worse because they can cause mental vexation in parents, who tthen take out the frustration on the kid.
My point is that he beat the crap out of her. It is typical, when this happens to girls, that they go on to date (and marry) abusive guys. This is due to the low self-esteem you mentioned, and because that is how they expect guys to treat them. (Father = male role model for kids, right?)
Anyway, when I met this girl she had all kinds of problems. She was addicted to cocaine and prescription pain killers. She also had a 5 year old son. The thing is, the more I got to know her, the more I realized that underneath all the shit, there was this beautiful and intelligent person. The thing is, that person was afriad to come out because she'd always been greeted by rejection.
I tried and tried to get to see more of the person I loved, not the drug addict. I moved in with her, took care of her kid, ultimately even sent her to rehab at a cost of several thousand dollars. While she was away, I took care of her son, helped him with school, etc. We got along great - he responded so well. Still love that kid.
She couldn't accept the fact that I really wanted to be with her. She said things like "I don't deserve you" and "I am afraid I will disappoint you" and "why do you want a single Mom from *******, when you could have anyone you want?"
Meanwhile I was fighting with her every day to show her that the person she truly is, is wonderful and deserving of a good guy (like me for example...haha).
After over a year of battling these demons, I had to go. She never kicked the dugs, and the emotional pain was unbelievable. There was nothing more I could do. I moved to the rural south to be there, paid for rehab, was the best parent her son will ever have.
If there were someone in her life when she was 15 to show her all these things that I showed her at 23, she'd be different. I'd have married her.
Instead, she is still into drugs, starting to lose some of her attractiveness (only 25 but looking older), and engaged to some fucking loser that will probably beat her too. She had a miscarriage after that - I wonder if she can even have babies anymore.
My point is - if you or someone like you doesn;t do anything, the result will be the same. A brilliant light will go out before it is given a chance to shine.