I'm 20, my body always aches, my knees are shot, and I should probably consider growing up soon instead of just skiing all the time.
I've been in college for 2 years now and still don't have a clue when I'll graduate.
My priorities are completely out of order, when I'm not skiing I'm drinking, smoking, or generally doing something stupid and childish, and when I'm not doing any of those things, im probably in school.
My future plans consist more of being somewhere with good skiing than good work.
I work all summer so I can straight up blow cash throughout the winter.
Instead of spending semester breaks with my family I spend it skiing somewhere at least 1500 miles away from my home.
If I have $100 in my pocket, half of it goes to weed, 30% of it goes to alcohol, and 20% of it goes to fast food. I feel like if I didn't ski so much I'd be 300 lbs.
Bottomline is, you're not old. As long as you can still walk and ski you'll be fine. Worry about growing up when you're in your 40s. 22? Jesus that ain't shit. Sure you might have to start paying bills and shit, but as long as you don't get no bitch knocked up you'll still be able to have plenty of fun for at least another 10 years or so.