As a counterpoint to the Strunk and White recommendation, please take a look at this: 50 Years of Stupid Grammar Advice [1]. (Note that it doesn't primarily object to the stylistic advice in S&W, which it calls "vapid" but "mostly harmless". The real objections are to the grammatical claims and advice.) Two books on writing I strongly recommend: Clear and Simple as the Truth: Writing Classic Prose [2], exerpt here[3]…
Additionally, Orwell's Politics and the English Language https://www.mtholyoke.edu/acad/intrel/orwell46.htm.
And as for listening to editors, the world is your editor. Put your writing into the hands of anyone you can and ask for feedback. When someone says it is great, thank them and move on until you find someone who can honestly provide constructive criticism...your work is never great.