Please read my story below, I need advice!?

Hey sorry for all the problems.My best friend brittnee had a mild case of scoliosis we are both 15....and all i can say is ..well i cnt say i know what ur going through im barely ever sick ...but i was depressed a couple months back and it was so bad that igot to the point i started cutting and well they were baby cuts but see i realized how stupid i ws for being depressed...i talked to my friends about everything (not so much the cutting) but i got all my feelings out and i told myself(why am i so depressed i have a life to live and if i dont live it now then its like im already dead)so i just tell myself im beautiful everyday and all this even when i dont believe it i go to school and do everything with this feeling that helps me get through the day....find a memory or something that helps u remember a good time or compliment and remind urself of it it will help...and i f u want to talk to ur mom it helps:) Dont worry ,Be happy