Glad you enjoyed :)
One thing that really helped me with the editing process was the Prepub proofing format: https://www.mcdemarco.net/tools/scree/prepub/
I'd "view proofing copy" with that as my proofing format, get a text-based .md file, and paste that into Grammarly. Then I'd take the corrections suggested by Grammarly and hand-make them in Twine.