Getting Involved In School Sports?

Hey Yahoo! OK, so I have a question about sports and such. I'm going to be a freshman next year, and I'm not gonna lie, I'm DEFINITELY not athletic. I don't know why, I'm really tall and have a good build for sports, but for some reason I've always been uncomfortable with them. In high school my parents are pushing me to do a sport although I really would rather wait a year and become comfortable with the whole scene of high school. Anyways, I was thinking about doing cross country, but I'm horrible at it, and the high school I'm going to is extremely competitive and they win all of their cross country meets. I feel like they would be snobbish and make fun of me if I wasn't good. Do you guys have any advice? I don't really know how to get more confidence about stuff like this. Just leave some comments :D Thanks Yahoo!