I think I understand!
1- You were raped 3 years ago.
2- You are ashamed to tell your family. Or, you won't tell because, your family won't understand for some reason. Or they might think it's your fault. Or?
3- Now, you want to commit suicide because you feel guilty for some reason.
I think she feels guilty, and wants to get this off her chest. But can't tell anyone?
If you can't tell your family, then tell a friend you trust. Friends aren't supposed to judge you; they should be your 2nd support system.