Two responses for you here, and I appreciate the great question!

1. It is an important skill to be able to stop and move on to the next thing. It shows discipline, organization, and structure
2. When I am rocking and rolling on one of these, there is no stopping me! Sometimes, I can write for hours, my friend. These are guidelines not strict demands all the time. That is the fun part of doing things on your own, you know?