“Running a close second [as a writing lesson] was the realization that stopping a piece of work just because it’s hard, either emotionally or imaginatively, is a bad idea. Sometimes you have to go on when you don’t feel like it, and sometimes you’re doing good work when it feels like all you’re managing is to shovel shit from a sitting position.” ― Stephen King

It’s true. You can’t judge whether your work is going well by how it felt to write it. Sometimes every word comes out like hard labor, and that doesn’t mean you’re doing bad work. Any time you’re sitting down and doing the work, you get to feel good at the end that you sat down and did the work.