If there's any doubt at all in your mind about staying, I recommend leaving. I left at 15.5 years for the defense industry, and despite the flaws here it's still a lot better than active duty.

If you decide to leave, don't make it known until you put in your paperwork. You will end up as a magnet for all of the worst tasks, and the non-flying jobs that they put pilots into have an inordinate amount of painful (and generally unnecessary) tasks to hand out.