Good stuff.
Guys, I edit professionally. This list is legit. Incorporating these suggestions before you hire an editor will save you A LOT of money. Even if you did these and nothing else, you’d see significant overall improvement in your work.
That said, you don’t have to overthink these things when you’re writing a first draft. If you write, “she said angrily” in a first draft, you can always revisit the phrasing in a second draft. I mention this because overthinking style can lead to a loss of momentum, and losing momentum is why so many people never finish a draft. Give yourself permission to write fast, write messy or ugly, and edit your draft into beauty later.