What should i know about cheerleading?

I tried other sports, but honestly, i can't throw or catch balls or run for miles. I was thinking about cheer leading, but i have no experience in gymnastics. However, I have been in dance class for years (ballet is 10, tap is 9, jazz is about 5, contemporary is 1 and hip hop is about 1/2 a class). Sadly, our school doesn't have a dance team. if we did, i would try out as soon as possible. Here's the thing: i don't know anything gymnastics. Not even a cart wheel (which i am now working on). what should i do?