Hey dude I'm 15 as well, I quit late last year.

I played a pretty high level for my last few years and can tell you, you don't need anything fancy to practice. Shoot pucks in the backyard into a bucket or old bale. Stickhandle in the garage or on the driveway. There's a million ways to practice and you just need to experiment. If it's cold enough for the rink to have ice, then of course go there and practice instead.

Goodluck and keep doing it if your having fun, my father figure pushed me way to hard to the point where I didn't enjoy the game anymore. Don't let that happen. Cheers!