Work hard for things that matter. If I’m a world-renowned mathematician, what good is it for me to train like a New York Giant for my flag football game?
It doesn’t make sense to give my all to something that benefits me little just to say I was the best. That’s ego. I’d rather be amazing at that which I’m purposed with about than to say I stuck with something just for the hell of sticking with it. Life is too short not to love as much of it as possible. So feel free to develop a plan that allows you to quit that thing which brings you no joy so that you can pursue that which makes you feel fulfilled.
Make making the most of your time a priority.