How to teach myself to become a cheerleader?

I'm really flexible and have always wanted to do the stunts, etc. I was wondering if anyone had any ideas for me. My drawback is never having the opprotunity to try cheerleading, and and that I have broken my wrists a number of times and so am not as strong there as before (I'm working on it). For example how would i learn how to tumble? Thanks :)