The suggestions about attending Hunter Safety first are spot on. You need that to get a hunting license. It will teach you a lot of things you may not be aware of, especially since nobody in your family hunts. Does anybody in your family target shoot or plink? That may be a way to get some target practice in also. After you attend a Hunter Safety course, you will likely find out about youth hunting opportunities. The class can also help you network with other people that hunt and may help you get started, with your parents permission of course. Also, a lot of hunters start with small game such as squirrels, rabbits and birds. There are usually a lot of hunting opportunities to hunt small game and you can often do it with an airgun, a 22 or just a shotgun so it's cheaper to buy ammo and you get more hunting opportunities because you can often hunt in a nearby field, your backyard sometimes, etc. instead of having to drive several hours to a deer hunting area.

When I was about your age, I wanted to hunt and nobody else in my family hunted. My buddy down the street used to pheasant hunt with his parents at a club a lot and they would take me some of the time. I ended up buying a Brittany (pointing dog) and training it a lot in the backyard. My dad still didn't want to hunt but used to take my dog and I pheasant hunting at the same club and just enjoy watching my dog work the birds. Talk to your parents about it. You may find a way to start hunting with them just enjoying the time outdoors with you and a hunting dog if you decide to get one. Enjoy the experience and the time outdoors. And let us know how things are working out for you.