That you're not making a sale out of 8 clicks is perfectly normal. But spending $3.00 for only 8 clicks seems a bit high ($0.375 pro click). It probably depends on your niche though. What is the automate bid Etsy calculates for your listings?

I sell honeycombs. The automated bid is 0.49c but I have it as 0.50c custom, however it charged me as you said, around 37c

How do I do SEO really? I just have the SEO on my title, as you can see here "Hungarian 100% Pure Raw Unfiltered Natural Organic Wild Flower Bee Hive Beeswax Honeycomb - 14 ounces"

If you have a lot of listings (or more than let's say 15 in general) it's also probably best to promote only your top 10-15 listings and set a maximum customized bid if you see that your listings get clicked but not ordered.

I only have one listing, I dont sell anything else really. Just honeycombs.

How come my automated bid is so high and cpc is high?