I am giving Dr. Billi 5 stars. She did what I thought was impossible. In 10 weeks she had my stubborn senior high school son do things he had refused to do. I saw him start using his smart phone as a calendar. A miracle! He said he was smart & could remember everything he needed. His ADD added to his mess & very little got accomplished. Second miracle - he said he never needed to study and school was boring and stupid. A few days ago, he came into the room to tell me his plans for studying for his finals. I just smiled. I look for action & results and got both from Dr. Billi coaching my son.