Stop to Continue
This, I find, generally works for any task you are trying to get done. Give it a try tonight after a day’s worth of work :)
The best way is always to stop when you are going good and when you know what will happen next. If you do that every day when you are writing a novel you will never be stuck. That is the most valuable thing I can tell you so try to remember it.
— Earnest Hemingway, October 1935 article in Esquire ( “Monologue to the Maestro: A High Seas Letter”)