Hi Terry,
I am a much newer shop than you, so take it for what is worth.
I would not deactivate any listings yet. I've heard that each of your listings works as a piece of marketing bringing different people based on their SEO. Maybe you don't want to deactivate a bunch of listings and just have one per style.
First I would add all option to all of your listings (I see you already did that in some) and remove some details from your tittles. For example, in this listing:
https://www.etsy.com/listing/73806581/aqua-blue-sleepwear-lingerie-retro-bra?ref=shop_home_activethe tittle specify that this item is aqua blue and small, but you give the options to pick other colors and sizes.
I would also add a picture of the colors you have available.
After that you'll be able to see which listings do better, and deactivate slowly. Maybe you'll want to keep a couple of your better performing listings per style.
Good luck and let us know how it goes!