I've left 3 different jobs since the Army.
I worked for the Dept of Corrections for about 8 months, and had quite well enough of that. Extremely stressful, horrible working conditions, and the correctional officers are very limited in their power and things they can do.
I worked for a local manufacturing plant for right at 3 years, but felt like I was drowning further and further. We switched rotations every 28 days (nights/days). It just got to where it was too much. Due to the schedule you couldn't go to school except online, and there was no job growth unless you were up your supervisors behind with puckered lips and lots of vaseline.
I went to a job fair in Nashville for veterans, and was interviewed by a nationwide Door company that specializes in Overhead Doors, Dock Equipment, garage doors and Entry Doors (automatic and hollow metal). I got hired on with a better starting pay.
I quickly realized, however, that the company who hired me for Nashville was too preemptive in their hiring. There was no work for me in the automatic door business. I couldn't make 40 hours a week once I became a fully qualified technician with my own service truck, and was having to use PTO to supplement my income to pay my bills.
Around Christmas I applied to go to APSU and was accepted. I only had to take one class that was 3 times a week, first thing in the morning. Work threw a fit and told me I had to choose between work and school. I chose school.
I have to say that going to school full-time is not the easiest thing in the world to do, but its the best decision I've made.