The consistency of your endeavors (exercise, companionship, work) is more important than the quantity. Nothing beats small things done every day, which is way more important than what you do occasionally.
The world is full of people who have stopped listening to themselves or have listened only to their neighbors to learn what they ought to do, how they ought to behave, and what the values are that they should be living by.
The best engineers don't just solve problems; they redefine what's possible.