This sounds like approving bad/poor abstractions too prematurely and keep building on top of that.
What about the satisfaction that comes not with struggling but from the calmness of an elegant functional model that dynamically covers all the flows and all the edge cases you could (deep and slowly [1]) think about?
[1] maybe refining in different days, in the shower, after recovering breath in a hard set in a workout session, after a nap...