that's awful hon, it really is. you don't say how long ago that was, but no matter one or ten years, it sounds to me like you really should talk to someone about it, if you feel you can't tell your mum or friends, perhaps a counsellor? you don't mention if you were seeing one after it happened, but from the sound of it, i think it would help to do so. i know whats its liike to be told to see a counsellor, you think they're just for loonys etc! at least, that was my first reaction, afraid they'd lock me up and throw away the key! but it really helped to talk things through, you feel you can tell them anything, first, coz you know they're not allowed to repeat it to anyone, and second, they're not someone you know, kiinda like an outsiders opinion, shoullder to lean on, but an outsider who really cares. at least if you get the right person, they are. i was on my fourth counsellor before i finally found one who suited me.
i think it's great that you're brave enough to share your story with others here, it must have taken a lot of courage and strength to write that down.
I wish you all the very best, and i hope you can find a way to heal as best as possible, i, and everyone else here, will be thinking of you. *HUGS*