40? for me; long long ago and far far away.

But it can be the best time of your life. and it's just a number. You've heard from a lot of us already who have told you. I know people your age who are older than me. I'm 55. You are young, healthy and beautiful.
If finding a guy is important to you, focus more attention on it. But it's not your age.

When I was 40, I was still so focussed on my kids that my health was a disaster. You're way ahead of me. Charge forward and don't look back.