You aren't doing anything wrong. You haven't even been open 2 months and many people do not see a sale that quickly (or even for much longer). I would suggest making your titles longer and more descriptive -- use some of the words you use as tags for the item to add to the title (basically work on SEO. There are a lot of good articles and youtube videos that talk about Etsy SEO).
Also make sure you put dimensions for items like this:
https://www.etsy.com/listing/264767966/zen-garden?ref=shop_home_active_3People like to know how big an item is before they buy. Same goes for all jewelry items, and if you can, have jewelry items on a model in at least 1 pic.
Good luck!