Having a hard time putting words on the page? There are many ways that writers overcome instances of such difficulty. If you haven’t quite found your preferred approach yet, here’s one to try: write topic sentences first.
Why? Because one sentence is a lot less daunting than having to produce an entire paragraph. When you’re in a funk, you’re likely to have a better chance of coming up with single sentences that encapsulate a point than a full-on discussion about it. It makes things a lot simpler and a lot less demanding on your head that’s currently in resistance mode.
The sentences don’t have to be particularly exceptional. Heck, it can just be a simple declarative line that says what you want that paragraph to convey. If the topic sentence isn’t complete, let it be. As long as you can get a feint idea of what comes next based from reading it, that will do.
This approach to forcing yourself to put down words on the page is a lot like outlining. If you find outlining a convenient task, then it should help to look at the activity that way. It’s a lot like outlining, after all, except with full sentences comprising each line, rather than simple phrases.