I feel so unhappy about myself?

You need to learn to love yourself, you are God's child, and God does not make no mistakes. Read books on self-esteem, and work on you. Who cares about if someone else does not like your under-bite. You concentrate on school, and when you get a good job, them you can get the surgery on your own. One day their is someone out their for you. Cry no more, learn to live and be happy, looks are not everything, beauty is as beauty does. In other words, let your beauty from within come out. be kind to people, and treat people like you want to be treated. What a wonderful world you can make it!