In the original story, the little mermaid doesn’t only sacrifice her voice. In exchange for bodily grace, she consents to constant searing pain in her legs. When she dances, her movements are lovely and delicate, but she feels as though her legs are being slashed with knives.
If you think of yourself in these terms, what did you sacrifice for the prince? Could you retrieve it afterwards or was it irretrievable? In this case, the little mermaid is hoping to exchange her muteness and pain for a human soul and a man’s devotion. What were you hoping for? When you visited the witch and agreed to her terms and left your family and your home and the beautifully constructed world around you, what did you want? What did you need?