Find a distraction that has a shorter time to get done, and say/think to yourself "after this thing I'll add something to the document", and then if you're not

Find a distraction that has a shorter time to get done, and say/think to yourself "after this thing I'll add something to the document", and then if you're not sure how to continue from your current point, try to write the section headings or subheadings for an upcoming section. You can do a lot out of order and fill in the spaces as the inspiration pops up. I usually do a youtube video, go for a walk, or eat for the distraction, and then make some kind of attempt at progress, even if it's just formatting stuff. Setting up all the sections and page numbers and whatever else at the start helps me too, bc I think it's just annoying to try and highlight things to change after writing. My order is usually: Set up Title/headings/subheadings, font/size/style settings, rough draft of intro for each section, notes/major points for each section, fix any format issues that affect the entire document or an entire section and will not be reinstated by adding more content, flesh out the content in each section (and do not mess with format during this bc as you add more content it will change again anyway), grammar/writing style edit, final format edit.