I'm 53, and I use Strava (hidden joke there). I glance at my segment times after my ride just to see if I set any PRs, but it doesn't really bother me if I don't, and I don't compare my times to other riders. I do look at my average speed over my routes to see if I've improved or gotten worse, and do compare my average speed with the small group that I ride with. For a while it was hard for me to go out and not try to beat my times and average speeds so I understand where you're coming from. Now, I've accepted that sometimes I want to go hard but sometimes I just want to ride like I did when I was a kid - exploring, stopping when I want to. I think I've learned to mesh all that together and not get stressed about it. As long as I'm not the slowest rider on my group rides I'm okay. I hope I can still ride at 63 - hats off to you.