37!! you will be competing with young hopefulls you are very nearly half your age with no " partner in tow", and with pilots your age with 3000 hours plus with all the prefered types and experience.
Whether that is a problem depends on what you want to do. I was a lot older than that when I started. I'm now instructing fulltime, and happy to stay doing that for as long as I can pass medicals and react fast enough to stop students killing me. Interestingly, I'm now getting the impression I might get some commercial flying if I got more ratings, but I'll hit 60 in not that many years, so I'm not sure if it's worth the outlay, or even if I want to. But 37? Really no big deal. Apart from the military guys, most people do this in their 30s, 40s, and older; they usually don't have the money before that.