Many people start a marathon (or anything in work/project), but a very few finish anything.

In a marathon example, do you think that if distance is shorter, will this encourage people to finish the marathon? the answer might be yes, this will help “some people” to complete the marathon. But still there will be a lot of people who will stop before finishing the marathon.

In a long distance race, everyone gets tired. The winner/s (the people who finish anything) is the runner who figures out where to put the tired, figures out how to store it away until after the race is over. Sure, he’s tired. Everyone is. That’s not the point. The point is to run…to keep running.

If you hired a marathon coach, it doesn’t make sense to ask him: help me finish the marathon without getting tired? That’s Impossible

People who dropped out (of anything) always drop out because they don’t know where to put the tired, and people who finish the marathon “or anything” learn how be tired and finish what they are doing anyway.

They learn the art of persistence, the art of showing up again and again… to do work that exhausted other people.
Not to demand that the fear going away
The fear of being wrong at the beginning.
The fear that it might not work for some people.
The fear of accepting (or better learn to ignore) the criticism.

Because the act of being a Professional is not do everything when and how we want to, but to do what’s necessary to do despite we are tired.