I really want to try cheerleading!?

There isn't a weight restriction for fliers. It's usually the shortest, strongest girls that fly though. And seeing as you're 4'11', you would really almost have to fly because you can't really be a base because bases need to be of equal or close to equal height, and most other people around your height will probably fly. You can't back or front, because they're the tallest girls. And as a cheerleader, I know that being dropped is kind of scary, but you have a ton of people holding you up, and in years of cheerleading, I've never seen anyone not be caught before they hit the ground. I usually base, but I'll fly sometimes too. For your try out, make sure you smile and use facial expressions. That makes a huge difference in your audition, even if you mess up, you need to smile! Good luck :)