stressed

has anyone had so much on their mind that they just want everything to go away.i hate school i hate my life i just need a break from life. i feel like pulling out my hair punching walls and going crazy and i have no one to talk to. i mean there are my parents but im always so depressed and i feel as if they would turn their backs and wont listen.  and i cant cut myself anymore because the scars are permanate and always reminds me of once i once did. what to do please help!