If you went through all the motions of signing up for a military service only to decide it is not right for you and you have NOT been to the Military Entrance Processing Station (MEPS) and have NOT taken an Oath of Enlistment, you are free to quit the process at any time.
But there are rules that provide for letting you go if you are not a good fit or fail to adapt to a military environment. Until a new recruit takes the Oath of Enlistment at MEPS, they aren’t officially “in the military” in spite of the legally binding paperwork you sign.
Here’s a secret your recruiter won’t tell you. Quitting The Military: Before And During Basic Training There is no easy answer to the basic question since much depends on when and why you want to quit. Once you have signed on the dotted line and shipped out to boot camp, is it possible to quit the military? Many have tried, and even more have wondered if getting out early is a good option for them.