Revisions are scary. Cutting scenes you once thought not only necessary, but integral, in the hope of replacing them with something better is scary.
“Let me say it here once and for all: unless you make big changes, a revision isn’t worth doing. If you go out on a submission round and get roundly rejected, you’re not going to solve your problem by going back to the page to tweak a few words here and there. I’ve said this before, but look at the word revision…it means “to see again.” To see your story in a whole new light. To make massive plot, character, and language changes. And having so much on the page already often lures us into a false complacency.” - Mary Cole, Kidlit.com