I did it! 50 hours of editing in March.
I'm just finishing the monster scene I've been mired in for like a week. I've also been inspired to work on a later scene, so have been flitting back and forth between them and have them both pretty much done.
For April, I'm doing another 50 hours. Really, my goal is to NOT STOP until I am done with this draft and ready to send the WHOLE thing to beta readers.