Why am I getting no sales or subscriptions despite high Facebook ad engagement?

The confidence here is absolutely inspiring. I can tell you have put a lot of yourself into these.

From the sounds of it, what you might benefit from is adding that strong personality and belief in the value you bring into your ads. Perhaps you could talk about what sort of feelings these items bring, what sort of people would like them, even who they should be gifted to.

All these things add to a narrative, and a narrative sells products not just stated value. Impressions are great, but we need to pull them through the whole process with the buyer keeping in mind that what they are buying will be justified.

You can read more about this and other techniques here.