I am 34 years old with a Bachelors in Aviation from OU. I left ExpressJet in 2011 with 3000 TT, 1700 in the jet, and 1000 pic (no jet pic). Since then I went to paramedic school, fire academy and landed a firefighter/paramedic position with a dept here in Southern California. With overtime as a straight firemen I make around $170,000 a year with a pension. I currently have a wife and two kids that I support. My wife will finish getting her Masters in Public Relations this May and with her experience should be able to get a job making 6 figures straight out of school.
I like my job now and get a lot of personal satisfaction from it, but I miss aviation and flying the jet. I would love to get back into the game. All my ratings and certs are current including my CFI, CFII, MEI (although I never got my ATP)
Should I leave a stable career that I enjoy, to go back to flying in todays aviation climate?
If so should I just apply to regionals, or is there some part time 135 flying I could do on the side?

I appreciate any and all advice and insight, thank you for reading through my mostly incoherent rant.