For good SEO (which I think is your weak point at the moment, as photography is excellent) you need to repeat your title in the tags. So if you have a phrase in the title like "nursing necklace", that must also be one tag. For this item, for instance:
https://www.etsy.com/listing/201114942/nursing-necklace-teething-necklace?ref=shop_home_feat_1(which is lovely!)
The title and tags both probably need some work. Your title doesn't need your shop name in it; using every character available in a title isn't necessary (it clutters up the screen on a tablet or phone, covering the photo, and there's some evidence it may reduce the relevancy standing you get for the phrases you have in it). So just do what's necessary, and try not to repeat a word or phrase more than twice. The current title is "Nursing Necklace, Teething Necklace - Yellow and Beige - Organic - Babywearing Necklace - Milk and Joy - Gift for New Mother"
I might go (assuming you've done the research and those phrases are good ones for people looking for your items) with something like "Nursing Necklace - Yellow and Beige Organic Babywearing Necklace, Gift for New Mother"
Then the tags would include:
nursing necklace
yellow and beige
organic babywearing
babywearing necklace
gift for new mother
(plus all the rest)
Every listing cannot be relevant for every term that fits it, right? It wouldn't work even if you could fit it all in there because for the big searches, Etsy only allows 1 item per shop on the first page.
So it makes a lot more sense to split up the most popular phrases between items (in the title - put everything in the tags). Some of your necklaces can be titled "teething necklace" and others "babywearing necklace" and others "nursing necklace" and others "babywearing jewelry" and etc. Use 2 or three of those sort of phrases per title, not 5.
Also, you're the first result (yay!) for "gift for new mother," which is really good.
But you're nowhere to be found in "gift for new mom," which is also a search suggested by Etsy.
The Suggested searches (basically, start typing something like "teething necklace" in the search bar and see what Etsy shows in the drop-down) are phrases that are commonly searched on Etsy; they're a very good source of new keywords and phrases for your items :)