So here I've been reading lots of writers' blogs, listening to professional cautions and moans, trying to make sure I measure up appropriately to the expectations of my readers.
To heck with THAT. No one ever said what a blast it was doing the final quarter of a novel! That's what's getting me out of bed early every morning.
It's like watching your favorite long form TV show approach the end of its season and chewing on each week's episode, wondering how they will resolve the plot. That sense of time scale seems a closer match to writing than reading a book, which can be over in just a few hours.
Every day, as I commute, I get to chew on the plot so far and plan out the very next bits of it so I can write the scenes effectively the next day. And while I know roughly what will happen, details are constantly popping up (“oh, of course that's what he should do, that's how that gets tied in”) and it's always a surprise. The mind will provide, if you just plow the ground and sow it correctly (and make sure you're working on the right acreage).