No, you are not broken!!!! Different, maybe, but that's not bad. I read an article once about someone who sounds like she had similar problems to you. She became a mascot of all things. Because she could dress up and no one knew it was her, she could come out of her shell and be silly. It slowly gave her confidence when she wasn't in costume. I'm not saying that this is the solution for you, but that there is hope. As for a job. . . sales likely isn't for you, but maybe working in a library would be a better fit? It's not easy when you're in school. Hang in there.