Can I rant? I’m in several writing groups and what sticks out to me most is that people won’t shut up and accept comments. These are people’s opinions of your piece that you asked for so listen. Don’t explain why. Just realize that it made them stop their reading for a moment. So, write down their comments and reflect on it and maybe change something later.
So step 4, stoicism. Shut up and listen to the people who might just buy your book. They are the ones who can really help your writing.