The movie and book The Secret have caused a sensation around the world by telling people that their own thoughts can change their world. As a mother myself and in my more than 20 years advising parents, it has been made obvious to me that your thoughts are truly the ONLY way to change your parenting world. How you think about your child will in large part determine how you interact with him or her and how she responds to you and also to the rest of the world.
For example, if you know your child is sweating a test coming up at school, you may be thinking, "I sure hope he studies hard enough to get a good grade so he won't be disappointed." He will feel your fears and doubts. Even if you say nothing. What if instead you changed your thoughts to, "I know he will succeed at whatever he puts his mind to and if he wants to do well he will." Imagine the different vibes he will get from you without a word passing between you.
TAKE HOME TIP: A nice way to check yourself is to imagine what kind of vibes you would have liked to have from your parent in that situation. The Secret is that you attract the reaction you expect. Expect your child to manifest her best self, and she will. And never doubt it. And let her know it.
Find out more, for other specific parenting situation, in my books You Can Postpone Anything But Love, and The Seven Secrets of Successful Parents.