I'm very curious what your life experience is like on certain axes. Have you chosen your work? Did your father? Likewise, have you had any major unexpected life events (deaths, divorces, illnesses, etc.)?
I ask because I've found what you've said to be true in certain cases.
Working hard and consistently at something is great when it comes to projects and tasks that I choose and that are mostly mathematical or logical. On the other hand, this mode/method completely fails me when it comes to creative or architect level work.
I also caution against holding one worldview as good in all situations. I worked much harder before I got MS, and learning my limits and accepting them was key to preserving my mental health.
If you can live such a directed life, it can be very fruitful, but on the other hand, trying to make yourself hustle even though it's a bad idea is a great way to hurt yourself.