He is a sick man who needs help. Also, get counseling for yourself. Your school must surely have one. If not, talk to your principal. He may be able to refer you.
My older brother was very abusive when we were young. I considered him a psycho for his need to control everything I did. If I didn't come home from church with the day's newsletter, he would beat me up, and he didn't even go to church himself. He was a hypocrite with mental issues.
Not long ago, he told me to "forget our childhood," not "forgive me for treating you so badly." I forgave him long ago, but what he did to me during my childhood will not be forgotten for the rest of my life.