Your face is a little sunken, your hair is frizzy, and you haven't put on enough clothes to go outside...but you know what? That's ok. You are beautiful and you need to believe that.
I know sometimes it's hard--especially since knocking your tooth out, but you get a pretty tooth in 4 days and then you'll be as good as new. I know it's still going to be hard to consider yourself beautiful even when you have a tooth, even when you have your hair and makeup done, even when you're just as beautiful as everyone else. You have to remember, though, that God created you in His image and that he loves you and thinks you and His other children are the most beautiful creatures on Earth.
Also, you need to remember that aesthetic beauty is not the most important thing. You need to spend less time thinking about your looks and spend more time thinking about your relationships. Be beautiful to someone. Help a friend, smile at someone, genuinely listen to what people are saying to you--then you will be a beauty.
You are very smart, you are silly and cheerful, you are brave and responsible and capable to survive in this world. You also have a lot of help.
Don't forget to bring yourself up. Everything is ok. :D