I have a 3 1/2 year old boy (will be 4 in June). He is the youngest of three children and the only boy. He gives me a hard time as far as not minding, talking back, making faces, etc. He is also very hyper and whines a lot. I have talked to his teachers at school and they say he is excellent at school and they have NO problems at all. My parenting skills with my daughters have worked. They have never given me any trouble. I need tips on discipling boys and how to get control. I don't know where I have gone wrong.