Is there something wrong with my 7 year old daughter or is this behavior normal? She is a perfect child at school according to her teachers, a very good student. Yet when she interacts with her friends she is so mean. She yells at them and is very critical of them. She has a few good friends but she is very picky about who she plays with. She also is very short tempered. She can't stand to lose and will act out inappropriately when she does. She can be physical when she is angry. This doesn't seem right to me. Any suggestions on what I can do to help her? I feel like all of this is a self esteem issue and I am fearful her actions are going to alienate her from her peers. Its painful to stand by and watch and not know what to do.