Revision and editing are probably the hardest parts of writing (aside from the dreaded marketing blurb). So, my advice is to get the initial revisions done to chapter one, and then re-read the whole thing. Make notes when something happens that you don’t think was properly introduced, or hinted at in earlier stages of the story. Read it aloud, if you can (and this is something I drive my family insane by doing).
Here’s the thing. When you’re revising and editing, you hit a phrase, or a sentence, and you think, “Oh, that was great, I don’t want to lose that.” Experience has taught me those are the first bits I need to let go of, because they are going to hold me back. I copy and paste them to a separate document, and I leave them there. Most of the time, when I do that, I find myself writing something much clearer and stronger, because I’m not trying to bend the story to fit that pretty turn of phrase or that insanely seductive and often obscure word I’ve fallen for. When I’m done, there might be a place for that word or phrase, and I can copy it and bring it back into the chapter, but if not, I have a file of pretty phrases and words to serve as plot bunnies and inspiration for a new story.