Please help with my step child situation?

Be straight about your expectations and the consequences for misbehavior, then follow through. Setting boundaries makes them feel safer and is one of the most loving things we can do for our kids. Show him and the toddler equal physical affection and try really hard to praise the things he does right. Getting positive attention for good behavior sometimes curbs the bad behavior a little bit. I love giving "things" time-outs: if you throw it, hit with it, can't share and take turns with it, it gets a time out. The kid AND the thing can get a time out. And offer incentives, rewards for a good week like a trip to McDonalds. Treat him like he's yours cause he is. If you pray for patience, you often get more opportunities to learn patience. Stick in there. He'll see you mean what you say and that he can trust you, even trust that he will get in trouble. Don't go soft. Just be consistent.