I have a three year old daughter and she's just as sweet as she can be. She just got into a stage where she says "No" to me when I tell her to do something. If I tell her she can't have something, she just screams to the top of her lungs or fall to the floor. I feel as if I have no control over her which sometimes bother me. She does listen to her daddy. I wish I had that kind of power. Please help!