HELP! self harmin?

hey all. ok heres the thing. recently like in the past 3 days i've started to harm myself i only do it y scratchin my skin till theres no more left to scratch. i have a few cuts but only one really big one. the thing is i no i kinda do it for attention but also because i like doin it, i've wanted to try it for ages n its all i think about. i have ahd problems in the past e.g eatin disorder n other probs n got help but i dnt want to keep seein a phycahatrist. my parents think its just a carpet butn n i dnt want them to no. its just that i never feel really happy. i go through times where i think yeah i look good i have fab friends, but then i see all the girls around me who are so much prettier have boyfriends n i just feel crap. i no i have a problem with attention i cant help it, i'm not like loud mouthed or make it stand out sorta thing bt i just cant help likin people sayin good things about me which is why i always put my self down, i have a really low self estem at times.plz help