Sally Sanders is good at everything she does, or so it seems. Secretly she is afraid that if she can't do something well, or be the best, she will feel like a failure. She is scared that she is not "good enough." As a perfectionist, hitting the wrong note at a piano recital, or not making the soccer team feels like the end of the world! Gradually, through the help of her teachers and mother, Sally learns to have fun and not worry so much about being the best. She realizes that making mistakes is a part of learning, and that doing her best is good enough.