Ever consider that you may like to be someone else's personal trainer or maybe partner with a few trainers and open up a cross-fit place?

I was in the same boat a few years back, I had an amazing job with great pay but wasn't happy. I had to force myself to give up on certain fun/costly activities so I could save even a little bit at a time. At some point for me, it was more about trying different things while I still had money coming. You seem to be having an early mid-life crisis! Might want to consider a career coach or a life coach, sounds strange but, there are some sites that offer great options like https://www.pivotplanet.com/

Good Luck!