There's been minor progression in the story but it's mostly systems rebalancing and a bit of side events and ro events
I understand the feeling honestly as someone who's also writing an IF. When you get to a point where serious and impactful stuff needs to start happening in the story, if you are at least a little of a perfectionist and/or care about how well you want it to turn out—you start worrying about all the other stuff like systems, balance, lore, stats, etc.
I am not as much of a grinder as Niki because I have a social life and other stuff also needs my attention and time, but for example I got to the point where I was just about ready for a first release of a full demo with 100k+ words, and instead of just doing it and then reworking and fixing with community feedback, I decided to give it about a hundred or so passes before I did. And that led to an infinite cycle of reworks, improvements, ambitious additions and whatnot that had me rewriting almost everything.
To make things worse, when I saw that
@cultivator-anon released his new Aurillian Framework, I just couldn't resist the temptation and decided to port it over there and rewrite 90% because the system is independent and just so much better than ChoiceScript in terms of variability and functionality.
But that obviously led to even more time spent on learning JavaScript, HTML, and Twine, because like any good perfectionist - I just couldn't have my UI looking basic now could I? Had to learn to import new fonts, how to use em, make pics and cool headers for every character and chapter just to be sure. And that's after learning how to write games in the Framework as well as Twine in general.
Never being satisfied with your work is truly a constipating experience.