I’m currently working on a comedy sci-fi set in space.
The idea started as a three-page description of all the ways the squad of unit Treble-Six were useless. Beta readings saw people laughing several times a page but I was stuck on developing it. So it sat and gathered dust for a year or so.
Then one day a friend and I binge watched a lot of Archer. That put me in the right mood to present a story about a dysfunctional group of “heroes”. In no time I had turned a treatment into a chapter and a half of actual story. After that, as Bob says, hard work.