My daughter who is going to be two on June 15th has been very strong willed since birth. She is very strong minded and also has had temper tantrums since about 16 to 18 months old. She is a bit better now that she can communicate a little better with us. Although she still has her moments with real little things or even the bigger objectives. I use 2 minute time outs every time this happens. Her time out is typcially up stairs in her room. She knows that when she starts up that we don't tolerate that downstairs so therfore if she wants to keep it up then she will have to go for a time out. She does scream riddicullously but she also doesn't want to sit up in her room by herself so she stops pretty quickly. I know it is awful but I believe she should act respectful in the home and outside. My daughter is also a very good, sweet child most of the time but she has her stubborn moments. I wish you luck, and hang in there.