The school way of learning, dedicating focus and research to a specific subject for a relatively narrow period of time only to drop most of the knowledge after test time did in fact, and boy do I hate saying this, prepare me for my adult life. Now that I'm trying to write in earnest, I have to use this method over and over again in my stories.
Tons of research on relatively small aspects of the story just to have a few paragraphs be at least moderately accurate about a subject only for it to never be used in the story after that.
Damnit!
I saw someone on twitter come with the advice that when writing a story it is A-OK to skip writing the parts one is not up for at the moment, to come around to later. Like if you were to write a novel about a heist you could skip directly to the heist with an outline in square brackets like
[introduction of characters]
[confrontation of the mark and our protagonist]
[planning the heist]
"It was an hour to midnight. The plan was set: once the guard had come to walk his round, we'd use the chloroform. He appeared to be late..."
and so on, only actually compelling.
If you get bogged down on details, maybe doing that for the minor stuff could be an idea?