hey im 17 years old and 5'2 I know how to do a round-off back handspringx2, back handspring, back tuck, back layout, front tuck, front handspring, round-off,back walkover, front walkover,cartwheel, splits-left,right,middle. And i would really like to start trampoline and tumbling but idk wat level i am at with this? and how old do you have to be to be in the olympics in trampoline and tumbling? and do you think i could make it at 17?