Replying to Skiing ability at age 15 compared to now

I am a skier at age 15 and i am curious on how everybody elses skills were at age 15 and how it has progressed to how they are now. I can backflip, 180, flatspin, 360, 540, underflip and just front swap and front 270 off rails. i am not just talking about park, who throws these tricks off cliffs and natural hits? and how has your skills to when you were younger progressed to how good you are now? Personally i prefer skiing big mountain terrain and throwing my best tricks of large cliffs and natural features.