People who are insanely good at something, do they have a life or is it just me?

well im in 10th grade. my favorite thing, or shud i say only thing, i like to do is skateboard. i pretty much skate when i get home from school until it gets dark. on the weekends i skate from 12-3, take a break, 4-6, take a break, then 6-9. and im the best skateboarder in my school, i beat anyone i vs in skate in my skatepark, have probably the highest kickflip on youtube, highest ollie, and well..i think the only reason im better than everyone else is because i have no life, not because i have talent for skateboarding. can someone be truly good at something and still have a life? or does being truly good require commitment and dedication and sacrificing, well, having a life like i have? the other people that are like the best at things, are they like me, they have no life? or its just me and thats the only reason im the best?(at my school)