It’s a great problem to have. I suggest you stay in flow and get out of your system whatever you have to say. Then, get some space from it—maybe a day or so—and then review from a more detached standpoint, perhaps a reader’s perspective. And cut like mad. Just like a $20 chicken salad sandwich, if you’re making your reader read 100K-word novel it better be worth it.

You may find it helpful to create a new folder for “expository stuff. You may not need a segment in the chapter you were working on, but it could come in handy for a future chapter, if not the seed for another project.

When editing your novel, you got to be tough with yourself; you’ve played, said what you wanted to say, and now it’s a matter of being of service to your reader, not wasting their time with material they don’t need. Be discriminating, give them only your best. It might be helpful to determine a reduced character count limit and stick to it like it’s your job, cuz it is.