fight for my country

Im 15 and gonna be a sophmore in highschool next year. my dad was an army ranger my grandfather was like a general or somthing and my cousin is at west point right now. i dont have the grades to get into west point. im wondering what i should be doing now to prepare myself mentally, physically and who i should be talking too for when i join the army or marines. and whether i should go to college before or after i join the armed forces.

I am a marine. Ive been a marine for about a year. ive not seen combat yet. actually, ive been in training the entire time. i broke my ankle in boot camp and tore my shoulder in boot camp. six months later im at soi and i had a seizure. fuck. im just now getting back into training. god i just want to get to the fleet. fuck soi. just want to finish training and get my term over with.