My daughter is 3 and my son is 1, my daughter hits her brother when he goes into there room or when he goes to try to take her toy or she will take a toy that he is playing with. Sometimes they aren't playing with anything and she still mean to him. She's just really mean to him sometimes. She does have her days where she wants to be around him and hug him. But she mostly has bad days with him. Anyone have any tips of how to get my daughter to stop being so mean to her brother?? I don't know if...