hold onto nothing as fast as you can

Notes I left myself from the first draft:

Note to self: when Character A has a voice permanently encamped in the back of their head, it is not necessary to say "Character B said in the back of my head" every. single. time. Quit it already.

Eep! I thought I was 20,000 words from the end. I've been telling everyone 20,000. But I'm only about 7,500 words from the end. How do I fit the battle and denouement and epilogue in 7,500 words? (When will I stop sucking at estimating a novel's length? I spend 90,000 words despairing I don't have enough novel for a novel, and the last 10,000 panicking and cramming.)