Feeling left out

I posted a thread a week before.

http://www.socialphobiaworld.com/joining-a-new-class-tomorrow-im-really-terrified-58568/

I just can't relate to the class at all. They are all so relax and I am the type of person who prefers listening to the lecturer instead of talking things which is irrelevant. During break I follow this particular group and the only reason why is because we are of the same race. Plus the way they dressed is different from me so I don't see any similarities in us except for the race. I am not like that. I don't care what race you are as long as I feel comfortable being with the person then that's all which matters. So yeah it was super awkward during lunch just now. I really don't want to eat with them. It's not that I don't want to but I feel uncomfortable and I don't want to look like a wet blanket. I really don't know what to do. I want to join with this other group. They look like those type of people who is similar to me but like I said I don't want to be a wet blanket.

I'm sure they won't think that you're a wet blanket. They won't care if you screw up or seem annoying, and if they do then it's not your fault at all. They're the ones who have the problem.