It's pretty common, Indy, I don't think you'll be alone in being afraid. I remember when I was a junior and had to move across country from California to Maryland! Talk about being "new" kid at school. It was pretty bad because I had lived in the area from kindergarten through 3rd grade so "knew" some of the kids but we were strangers again by 11th grade, very weird feeling.
I was just reading this article, about college students starting school, maybe it can help some:
http://consumer.healthday.com/Article.asp?AID=642430