I noticed when I plan to work on a game, it becomes a bore and nothing clicks.
But when I do it without planning to work on anything, it feels like a fun activity rather than a chore, and everything just works!
I don't know if that helps.
I saw Robert De Niro say in an interview (I think it was an Actors Workshop episode) that if it's hard to get going because you don't feel ready or you don't feel you understand the role, then you just have to jump in and get in the flow of things.
Makes sense.