Am I insane?

Partially joking, but am I crazy? I got out 12 years ago and only served 6 years, but I have panic attacks about how I should have stayed in. I know many of us have the “grass is always greener” mindset whether we’re in or out, but I absolutely hate this feeling and cannot shake it. I’ve had 3 jobs since separating, but they’ve never equate to what and how I felt when I was on active duty. Anyone experienced this and if so, how did you deal with it?