Our younger dd is 6. She was dx'd with high functioning autism at 20 mths. She seems to go through cycles of defiant, difficult behaviors. I honestly have no idea how to parent her, and neither does dh. We have a typical 14 yr old. She and I will butt heads occaisionally, but will both apologize for whatever and move on. Our youngest dd flies into these rages, often for seemingly no reason. I'll give an example. I woke her up at 7:45 for a day camp we had to go to in an hour. She got to watch the very end of Sesame Street. She was furious she'd missed most of the show. So she asked me to put in an Elmo DVD. I did, but then she got more angry saying it was the wrong one. I got mad at that point, and said she was welcome to go pick whatever one she wanted, but I was done waiting on her. She flew into a rage and tried to push over the heavy oak DVD tower we have. I put her in time out, and had to leave the room, because I was honestly afraid I was going to hit her. She has been like this since she was very young. Why is she so unpredictable and angry? Would a psychologist be able to help her/us?