Hey i thought i'd chime in on the shyness part of your post. You sound like your having the same problems I had and am still having. Your shy and it's difficult for you to talk to people. I am the same way, especially in a classroom setting. I find being in a classroom full of people extremely uncomfortable.
Forgive me if I'm wrong, but you also sound somewhat young, like highschool or even younger. I feel like for young adults its hard to relate to a shy person and that why you feel so different from your classmates. The only advice I can offer from one shy person to another is that you have to realize it doesn't matter if you fit in or not. You should try your best to interact with people but don't be bothered that your not as extroverted as other people. Sounds cliche, but you have to find it in yourself to respect yourself and others will respect you. Don't write yourself off as "broken" just know that you are who you are.