idea ejaculation [PG-13]

it is a known fact that I'm writing a book. An RPG book. I've been doing so for the last 4 years and I'm quite proud of it. Most of the over-achievers in my high-school who were the ones the parents and teachers bet were going to be the most successful in life haven't written a book, so I feel pretty awesome, yeah.

But recently I reached a turning point with my writing: Part of the logic and mathematical system that the game involves might be drastically changed, and that's happening after the book had peaked in the same matters. Which means that I'm questioning whether the turning point is an excuse to have, again, a lot to create and work on, what keeps me busy or if it's really an improvement. I was already proof-reading the book, but stopped because I'm re-writing a bunch of stuff. So, did I just cum up with a bunch of fresh ideas or am I just afraid to deal with complicated stuff? Puzzling, isn't it?