Yeah, I was pretty jaded by the end of my career. Couldn't wait to retire, which is why I left as soon as I qualified for retirement. I served exactly 20 years and 6 days.
I only made it to Technical Sergeant (E-6), but it was my ideal rank. I had enough rank and authority to manage personnel and resources, but I was also the technical expert and could get down on the ground level and do the work alongside my Airmen and NCOs. All career fields operate differently, but my IT field specifically didn't allow Senior NCOs to do the job. They were upper-management; they always got put behind a desk and made to do paperwork, pass down orders, and oversee projects.
I didn't want that for myself, so I stopped trying to promote once I made TSgt. I expected I'd have to keep working once I retired, so I wanted to stay technical and keep my IT certifications and experience strong, so I could transition into a high-paying gig on the outside.
Little did I know that I'd earn that coveted 100% Permanent & Total disability rating. Now my medical and dental costs are covered for life and my monthly VA check is bigger than my pension, so I'm essentially making a little bit more money than when I was serving, just to sit on my ass all day. So... yeah, I'm enjoying that hard-earned freedom right now.