I know how you feel. My parents don't know a thing, but my parents are just entirely too blind to me. At different times, my mom has seen 3 scars, but never said anything or done anything. If you feel like you need to tell some one about your SI, it really is a whole lot easier to tell a friend then your parents. Parents blow things so out of proportion. And, you like to write? For me, it's a whole lot easier just to write something down than actually say it to a persons face. If your friends are true, they'll support you and try and help you. It's not that bad. Besides, we're always here for you.