Writing Tip: On Writing and tiredness
Sometimes when you sit down to write, you just don't have it. Could be you're tired or whatever. I used to really struggle with this and try to force myself to power through it.
What I've learned to do instead is give jotting down notes or working on the outline the same sort of weight as writing. It's all an essential part of the process anyway.
So next time you feel tired or something, focus on your outline or notes. And still feel accomplished.