Rachel,
The forums are not the best source for SEO advice. Copying listing titles and tags that popular sellers use is one way to start with SEO. We do not know which of those keywords are working for each seller and whatever else the seller might be doing to move sales along, such as promotion or advertising.
The general keywords you are seeing from high selling shops will not work for your shop right away. Your shop has very few sales and sales are a big part of Etsy's algorithm. It is time to move to the next step and find the more targeted keywords that shoppers use that will work for your shop.
There are a lot of resources on my Facebook group on all of this and more, as well as group members who can help when I am not available.