I'm I crazy?

I am a recent graduate from college. I put myself through school with loans. I am lost right now, I went to the military recruiter's office today. I wasn't sure that I wanted to sign. After I left the recruiter put me on the spot. I said sure sign me up for an appointment at MEPS. However, I really believe I need to take control of my life and not have the military do it. I feel guilty because I am impulsive and keep changing my mind. The recruiter is very good at his job. He builds my pion and motivation then I leave the office and second guess the decision. I am not in DEP so if I do not process then it won't matter. If I had a job right now I would not even think about the service. I quit my manual labor job because I thought I was going to enlist. However, I did soul searching and the military is not for me. I thought the military would change me, but I would be the same person but in a different environment.