Super nervous for work this summer?

I got a job to work at camp this summer but I'm really anxious. I've worked two years so far and this will be my third. I'm not nervous about my performance. I'm nervous about people. I won't go into details but I embarrased myself to say the least. I also don't have any friends from the staff because it was just awkward for them and for me. I'm not good with peope and never was, while everyone else are old time buddies. (I'm like the new kid on the block because I didn't go to camp as a camper that much.) I imagine sitting alone and shaking (literally) hoping that no one is judging me. What shoud i do?