I'm going to lock my stepbrother out of the house
What motivates you to do that?
I hate him and am afraid of him because he has raped me in the past.
It is important that you stay safe from him. Locking him out of the house is not a long term solution. You need to get somewhere safe and stay away from him until you can press charges.
I know he is going to do it again. I need to hurt him so he gets the point.
You need to be safe, but taking the law into your own hands good get you hurt or in legal trouble.