Too old for gymnastics?? please help?

i was a serious gymnast in the 3rd grade, but i just didnt have the drive, and bruised my knee caps, so i just quit, i was level 5 just got my back tuck, and i can still do back hand springs on the tramp, and if i tried on floor with a spot a few times, i think i will jump back into the feel, i am 12 right now, do you think i am too old to start again?? if i am not, what level do you think i will be in?