Maybe the best way to go after such a thing would be free writing. Set a timer, say for ten minutes, and during that time, you write without stopping, without reading, without spellchecking, all of that, just write with no pause at all until the timer goes off. Even if you don't find the one thing you're chasing, I bet it will be pretty eye opening. Good luck. Keep writing regardless, you've got a real talent for it.