What dirtbike should i get?

I am 14 and i have ridden clutch before but am not good at it but good enough. i practice first time clutch on a blaster. but im looking to get a 2 stroke dirtbike. ive never ridden a dirtbike before besides a crf 50 but i ridden a 125cc atv a 90cc atv and a 250cc atv i dont know what i should get between the kx100 or kx85 (or anyother 85 )