In CrossFit, you will never get to a place where you can say, “hey, that was fun, but I have mastered it. There is nothing more for me to learn, to get better at.” You may, maybe due to age, reach a place where you can’t add more weight on the bar, can’t go faster. But can you do it better, smoother, more graceful, more efficiently? Absolutely. Can you become more accurate, more flexible, more coordinated? Yes. Can you become more in control of your breath, more disciplined in your rest, more adept at beating back the demons that say you can’t? Definitely.
And those things, those abilities, have no end. Keep training.