I envy good looking people.
Have you always felt this way about attractive people?
Ever since I was a child.
You could base your reactions to people on how they act as a person instead of their looks as this is what will be most important in any real relationship. Don't worry about looks so much, they fade away with age most of the time (trust me on that).
I'm not going to change.
Changing takes time and although you might not feel like you can change or even want to it is not going to be that way forever. Within time you will see what I mean, so take the advice of an older person who has been through so much.