Jennifer, have you looked at different options for finding tags? Like google analytics? Or Marmalead? Etsyrank is a great source (although you need to sign up to see all the amazing features) and it's free.
Here are some things that helped me out.... use evernote or trello or google doc and keep a running list of tags that you have used and ones you find so they will always be readily available.
Pepper in your listings things like, "Gift for her", "Modern and Minimal", "Gifts Under 30" and "Gifts Under 50", "Made in the USA" and "Made in YOUR TOWN" - These will capture a different audience for people looking for gifts but not specifically for your item. I am not sure if a scarf counts as an accessory but if it does you can do a lot with that!
Also, split your tags between specific and official terms and broad ones. I don't know what a snood is and I wouldn't search for it, I would search for "cute crochet beanie" because I am not familiar with the term. Where as someone else is going to come to Etsy looking for a snood. Appeal to us both for more sales.
Before a holiday go into certain listings and add holiday tags (like Mother's Day and Valentine's Day) then schedule a reminder in your phone to take them out after the holiday.
Tags are always super hard and annoying to figure out. I try to use the idea of broad, specific and random tags when I tag. Broad = what it is, Specific = exactly what it is (hello, snood!) and random = gift for her, gift for bff, minimalist, etc....
From what I have learned so far, the first keywords are the most important in the title and listing and will show up on google so make them count! If Kayla is not a type of scarf design then lose it! You want the first part of your title to be an SEO winner.
Use all the photo slot! Etsy gave it to you for a reason, so you should use it! Close up shots and color availability work well.
In your Mobius Scarf there is a lot of repeat tags, which happens because you only have so many ideas but you used mother's day, mother's day gift, girl gif, womens gift.... in theory you are wasting your tags because you are repeating keywords. Remove "mother's day" because it is covered in mother's day gift.
Sorry for rambling on... I hope this helps you!