Early training for military?

[anthony]

I would like to start preparing myself for the military. I am 15 and I dont want to go to a camp or anything like that just stuff in my yard or something. Anyways i'd like to do drills which require strength and agility so any ideas or maybe a website would be nice. Also for shooting. I have a paintball gun but paint's too expensive and it's not really accurate. Maybe airsoft but i dont know how real it feels. Possible bb rifle or something for snipes. Anyways if you could help please