Dude don't listen to everyone. They use to call me fugly all through school. You need to learn to love yourself and ignore others. You're not a bad looking guy. That is the truth.
If people say that about you they are beneath your contempt, you cant help the way your face is, keep your bod fit and healthy, I guess if your jaw bothers you you could do what my cousin did when he got a big scar on his jaw, he grew a beard
Its called being comfortable with yourself.