You Don't have to go backwards, Why don't you get into Commercial HVAC ? Guys that can do Chillers and Boilers are always in demand! Not only that Controls will continue to grow and if you young guys don't step in who is going to do it when us old guys retire? Or how about big commercial refrigeration? Those guys are the overtime KINGS! Band-aids and Neo-sporin no thanks!
Challenge yourself, take the CM test --- Certificate Member since 2004 ---Join RSES ---the HVAC/R training authority ---www.rses.org