Good luck, Filigree. Cutting is hard work.
I found cutting my fiction to be harder than non-fiction. With the non-fiction, I could tell myself, "Oh, I'm repeating myself," or "This part is available in other books." Or even, "no one will care." (How I organized my special education and homeschooling files -- yeah, Hathor, inquiring minds want to know. The world awaits every last, tiny jewel of your insight and experience.)
With the non-fiction, so far, I've cut passages, places I know I was repetitious, and my pet ways of taking more words than necessary. (I posted my personal list earlier. I found it easier to cut when I used the "find" function for each instead of just reading through.) Now I've got to go through it line-by-line to see if each might be shorter or even eliminated. For example, I say, "due to the fact that" instead of "because." Or I've made my point and I need to move on, already. (Yes, they said my daughter had a learning disability for written language -- to her face -- based on a test I later learned involved doing jigsaw puzzles. That's so stupid, it's memorable. I don't have to keep bitching about it.)
Have you read your work out loud? I caught things with the fiction that way I didn't ever see no matter how many times I silently read. Dialogue in particular was easier to trim if I was speaking the lines. Also, I seemed to be able to cut more easily (ruthlessly) from a hard copy, for whatever reason. I'd tell myself I had to cut a few words at least from each page.
Again, good luck. (There I go, being repetitious.) But I'm sure you'll be able to do it -- because you have to. Necessity has a way of focusing your mind.