I recently started implementing a technique when writing anything, and designing almost everything, that has had an exponential impact on the pace at which I compose my first drafts - whether textual, or visual.
Here’s the strategy: Every time I need to fact check something; or google something; or find a picture or an icon; or generally do something that’s going to distract me from putting fingers to keys, I add the words “TK” with a few words describing what I need. And then I move on.
Consider TK to be an intentionally misspelled placeholder, that stands for “To Come (not right away, but eventually)”. Then, go about your business until you’re ready to come back and add the missing details.
It’s a life-saver.