Some observations about cutting, after spending too many years learning which words earn their place:
The word "very" is almost always covering for a weaker word behind it. Strunk's rule in The Elements of Style says to omit it. But the better fix is usually one layer deeper: find the adjective that doesn't need the crutch. "Very tired" becomes "exhausted." "Very sad" becomes "grief-stricken." The problem was never "very." The problem was the word that needed it.
Elmore Leonard wrote ten rules for writing, and the one that stuck with me is rule ten: "Try to leave out the part that readers tend to skip." It sounds simple. The hard part is figuring out which parts those are when you're the person who wrote all of them and you think every single one is essential because you remember why you put it there.
There's a difference between a sentence that's long because it needs all of its clauses, because the thought genuinely requires that much room to unfold, and a sentence that's long because you wrote it in one pass and never went back to ask whether it could lose thirty percent and still say the same thing.
Adverbs are a flag. They're a signal that the verb isn't carrying the weight. "She walked quickly" means you haven't found the right verb yet. "She rushed" or "she bolted" does the work in one word. This doesn't mean adverbs are always wrong. It means they're always worth questioning.
Capote claimed he cut 60 to 80 percent of his first drafts when writing In Cold Blood. I've never been sure whether those numbers were accurate or whether Capote, who was a performer as much as a writer, was exaggerating for effect. But the underlying principle holds regardless: most of what you write in a first draft is scaffolding. It was necessary for you to get to the real thing. It's not the real thing.
George Orwell, in "Politics and the English Language," wrote six rules for clear prose. The one I come back to: "Never use a long word where a short one will do." The instinct to reach for the longer word, the more academic-sounding word, is almost always the instinct to sound like you know more than you're saying. Which is the instinct to hide.
Stage directions in dialogue. "She said, picking up the cup." "He replied, running a hand through his hair." Cut almost all of them. If the dialogue is doing its work, the reader doesn't need to know what the character's hands were doing while they talked.
I cut a paragraph from an essay last month and reread the piece without it and it was better, noticeably better, and I sat there for a while trying to understand what that meant about all the paragraphs I've left in other pieces over the years, all the paragraphs that were maybe there for me and not for whoever was reading.
Strunk put it plainly: "Omit needless words." Three words that contain an entire editing philosophy. The question, of course, is which words are needless. That's the part Strunk can't answer for you. That's the part that takes years.