My stepmom is a mean woman. when i was 6, she whipped me with a belt and grounded me for DOING NOTHING!!!!!!!!!!!!! If i could whip her with a belt as payback....i definetly would. how can i deal with her?

My parents are divorced. they've been like that since i was an infant. i've been depressed all my life because of that and my stepmom. i always have been stressed out everyday i come home from school. PLEASE HELP ME!