I will be joining the military

I am going to join the military. I will be joining the Navy. I was going here for a job, but my family told me to join the military for stable and good pay. I do not want to join but I have to. I have to leave at 6am and I am vey nervous. I am not ready to leave. I also have a job that I love and I will not be able to get it back. I was also about to train to join in a vocation. I do not know what I am doing with my life. I am scared.