This is kind of the dichotomy, since we are so self-aware of it now. Some people grind their whole life and on their deathbed wish they grinded less. But to reach peak impact, it takes unfathomable grinding. The best grinders are often not the best parents, friends, or lovers.
I grinded through college and then for like 15 years, always doing three things at a time. Achieved a lot of professional success, and more then I thought. Right now I’m purposely like, “I’m going to grind less for a bit, and pay attention to some of those old folks who die saying to grind less”.