13/all star cheer/ am I too old?

Okay I am turning 13 and I was thinkn about tryn all star Cheer... Ya know the real competive one. Well I don't like plain old school cheer and this seemed different more so like gymastics. Now I did gimmastics for like ummmm 1 or 2 years and quite cuz I wasn't learning anything new. Than I did Ballet jazz and tap. Still doing it. Well ever since I was 4 and 2 years I didn't do it. Soooo now I still love it and my mom wants me to do a sport And all star is...aorta. So my big problem is I mastered the cartwheel and some what of a handstand. But u have to do all these stunts and flips . Will I be able to? Also I can kick my leg to about 2 o'clock. And I ended gymnastics at when we were learning back handsprings .......why..........!!!!!!! So please answer and help me before I embarr myself! Both to my family and to myself. Also before I hated cheer I mean I loathed it! But all star is different ... Right...? No fb games or cheering on the boys, just fun and jumping. Also isn't it dangerous? But watever I just need to know if I'd be able to do this.... It's a sport and it's like gymnastics. Also in ballet u can't really show ur emotions or sing with the song.... Which I lip it...but that's how I stay ib time. I look so retarded lipping the song in jazz and rap it gets seriously annoying !!!! Lol well thanks and I sincerly hope u help me and possible others who rvwonderibf the same. :]