I recently finished Stephen King's memoir (you might be able to read the whole thing here: https://www.google.com/books/edition/On_Writing/MvyTqyff_V4C?hl=en&gbpv=1&printsec=frontcover) He talks about the unconscious (for me, it's the little man in my head) handing over an image, and the writer's hands begin to type words around that, while the author (the conscious) strives to catch up. The words and ideas flow out at a rate much faster than the conscious can follow, or more importantly, control, and that's when the best stuff happens. Go back and edit later, but let the little man in your head do the creating. You can go back and clean up later.