With all due respect: it doesn’t.
As an attempt to contribute to the question behind your question: You might want to have a closer look at your personal creative process. “Flow” is something that Comes with attitude and an ability to relax when “technical” Problems occur. You may compare it to sexual intercourse: To make it pleasant you must not think of failure, even when you have issues from time to time. Otherwise you are getting into a vicious circle that drags you deeper and deeper into Problems.
Cheers, Ernst