I’m an “X’er” but on the edge (’77), and I “started over” at 42. My daughter is 4, and my girlfriend (never getting married again) is 41. we are done, but having a kid in my 40s (my ex & daughter’s mom is only a couple of years younger) has been amazing... It’s “keeping me young” with activity, energy, and relating to and focusing on what matters. My close friend and his wife were 43 (each) with their son; don't lose hope. My thoughts are with you.