Suicidal friend.

One of my friends broke down today for the third time this month. For the second time she has said she wants to kill herself. She won't listen to anyone and claims that she doesn't matter and that no one cares about her. She always hurts herself and she is on like five different medicines. Doctors keep telling her that she is bipolar, ADD, ADHD, she has post dramatic stress disorder and severe depression. She was raped when she was three years old by her much older step-brother. He has come back into her life and has triggered her post dramatic stress disorder. Her dad is a bastard who makes her life miserable by telling people lies about her and verbally abusing her. Her life seems really bad right now but she has people who actually love her and she doesn't see that. I really want her to get help but she won't let any one in.