Our daughter was raped at 16 and had a period of terrible shame, she would not go out, she hated herself and was far away from us. If you can keep on telling her how much she is loved by you no matter what she thinks about herself, it may help her to adjust her viewpoint. Many victims do not want to talk about what they have gone through, that should be respected but she needs to find a way to let her grief, anger out in a constructive way. Bulimia and self hurting only compound the problem. She is hurting herself (and you) and not the person who did this to her. She needs to take back her life, to find a way to not be the victim anymore. This may need specialist help....try and ring some of the help lines so you can get some insight into what you can do. Take up boxing or a self defense sport together, it gets a lot of aggression out!
The elder situation is actually secondary to your helping your daughter..........they are the ones who are guilty to allow this to go on. Still that does not help your daughter. Try to give her life stories of ones who have overcome their terrible backgrounds, reassure her that she is not measured by what was done to her. She needs to hear again and again that it was not her fault.
Our daughter came through but with scars on her soul. We love her so much and we are so proud of her. She is out of the jws now and we are so relieved.
Hugs Chicken little