How do I not look weird in gymnastics?

Hi, I need some help! I'm in the Propeller Gymnastics class right now but next class period their moving me into Jets, that's in 6 days! I'll look weird, I'll be the youngest there! And the worst because I'm the youngest :( and they said I was really good in my class but now I'll be the smallest! And youngest! I think it's going to be so weird! Help! All of the girls are all 13 and over and I'm 10 so I'll look small and weird! Is this true? Or will it be better because I'm the youngest in a more advanced class? Please give me some detailed answers!