How do we become a real mermaid with feat that return to you?

no feet can return to you- its either real mermaid or nothing. Anywho.. here is a spell but be careful PLEASE!! here it is: Open up mermaid real. Be aware what i want to be mer not hu.. Power can me upon thee mermaid tail is what i need to be. BE CAREFUL... :True story i promise: My friend wanted to be a mermaid... an h20 mermaid... so she found a spell that was in a mueseum.. and she used it...she regrets it because her feet dont return to her... Be careful what you wish for PLEASE!