Isn't the common denominator of a midlife crisis a yearning for the past? Overwhelming nostalgia? Dad buying a sports car so he can pretend to be 20 and virile again? Mom downing the mimosas at 10AM wishing she didn't make so many mistakes in the past? Uncle Joe can't stop talking about how he was High School senior football captain and had the time of his life in the '70s and that everything sucks now?
Me, on the other hand? I'd never want to go back to my 30s or 20s and especially my teenage years. High School was literally the worst part of my life, I'm talking rock bottom, and my 20s were not much better. But every year thereafter has been better than the previous one. I'm totally optimistic about the future! And while I might not be making more money year after year, I always feel like I have a purpose to achieve, and as my kid grows up, there always seems like there are future moments to look forward to. None of this requires religion.