Now it has not occurred to me to once but several times in the past. I sit in front of the screen and literally tun of words or I go completely blank. That moment is really not appreciated, at least not by any content creators. So as far as it goes, I do not relinquish those moments.
Once in a while taking a break does really helps a lot. Freshen up, think deeply and start over again. And once the first few line sets up, you are good to go indeed.