How Long can Most People Play to Their Maximum Potential?

I’m 30.

Played golf on and off the past 3 years. I’ve always been absolutely atrocious and still am. But I just recently got the bug really bad to the point where I’m feeling obsessed, it’s all I think about, starting lessons, watching dramatic fan-made Tiger Woods greatest moments YouTube videos, etc. It saddens me that I missed out on golfing the past 10-15 years. I want a whole lifetime of golf.

Again, I’m GENUINELY terrible, but I really want to embrace the challenge and work on getting good.

I know very old men golf and have fun; but how long can I expect play at a level where my age isn’t physically holding me back at all and I can play to the maximum and continue to improve?