Issues.

I'm fat. I'm too skinny. I'd be happy if I were taller, shorter, had curly hair, straight hair, a smaller nose, bigger muscles, longer legs.

Do any of these statements sound familiar? As a teen, you're going through a ton of changes in your body. And as your body changes, so does your image of yourself.

Self-esteem is all about how much people value themselves, the pride they feel in themselves, and how worthwhile they feel. Self-esteem is important because feeling good about yourself can affect how you act. A person who has high self-esteem will make friends easily, is more in control of his or her behavior, and will enjoy life more.