im 18 years old and i've always been in and out of trouble all through highschool. now that i graduated, im so over partying and all my stupid friends. i want to do something with my life. i really want to leave everyone, go far away and join the military to help my country and become a stronger person. i dont know which one would be good for me and i was wondering how many years you are required to join. what's the least amount of years you have to join?