how do you hide scars?

ok, I have these scars and im pretty ashamed of them. when im handing my parents something, I use my left hand and if I have 2 use my right, I turn my wrist all the way in so nobody can see the nasty scars. I cut a lot but try not 2…sometimes I make little slips and cant stop myself from doing it. last december my parents found out that I cut myself but they believe I stopped. I dont really know what 2 do but sometimes my brother makes fun of me for it. like the other day he asked me tips on cutting (him and his sarcasm) and my parents laughed. then later I was on the phone and I told my friend I had 2 go outside so we could talk and my brother was and the back ground sayin loudly how I was going outside so I could whine about how awful my life was…then my mom chimed and and said how I just had awful family and I just needed 2 go cut myself. everyday they make me feel worse and worse. I dont know anyone with parents like this. I tried running away once but thats how my parents found out about me cutting. my brother went on my myspace friends list and sent messages 2 all the guys who looked the least bit “emo” and told them 2 live me the fck alone and stuff…then my parents took his side and said I shouldnt b talkin 2 guys anyways. everytime I try 2 just leave my family alone and walk away from their sht, they tell me how I need 2 start having more 2 do with the family. when the cops picked me up and december, I could have told them everything and I wouldnt be living with my parents anymore but I am the kind of person where I dont want 2 hurt anyone no matter how badly they hurt me so I didnt tell them what went on at my house so basicly I saved my family heart ache. about a week ago I tried 2 commit suicide…I took a bunch of pills then cut myself and I cut open some blood vessels and I just wouldnt die…I dont know where 2 turn or what 2 do…life doesnt mean anything anymore…anyone got somethin 2 say 2 that? any advice?