I'm a freshman in highschool and I'm missing orentation?!?

I just found out that my family's trip is on the same week as my highschool orentation. I'm so scared simply because I'm going to be a freshman and I don't know where I'll be going. As if I wasn't a big enough target for juniors(there's no Seniors in my school because my school split up into smaller, job-type highschools.)I won't know where anything is!:( What should I do?Plus, I won't know my schedule and I'd have to get it the first day of school and look like a total **** infront of everyone. :/ Plus, I'm SUPER shy and soft-spoken..God, I'm so screwed! Help?!