This might not be helpful, in that case sorry, but the idea that came to my mind first was:
Do something every day that’s a little uncomfortable and out of your comfort zone that helps your own progress. Do it every day, even if just a little bit, like study or work out or some bit of work on a personal project. If you do it every day you can build up to something.
I had a boss who was older but studying for her masters, and was lamenting it was discouraging being the oldest person in the class doing it. The prof told her “well, you’ll either turn 50 with the masters degree or without it, which do you prefer?”
Wow sounds like a cool niche and activity!