DS is 22m and just keeps trying to hit the baby (6m). Sometimes he gets her, othertimes I manage to get her away or stop his hand in time. Its not just her, he keeps hitting me too and just seems angry with me and seems to enjoy making DD cry. We always firmly say "not hitting, hitting hurts", but he just carries on unless we move away from him. We have tried time out, but that didn't seem to make a difference. I just don't know what else to do. I feel like the worst mother in the world, every day is a battle and it takes all of my energy not to go crazy at him. 