Sharkie Trident

You find a trident washed out on the beach and you take it with you, little do you know the trident's azure jewel has a curse which will turn you into a Cute Shark Boy or Sharkie/Shark Hybrid (Shark tail and fin on arms and back) but you'll still be able to walk on land. The drawbacks are That you forget everything about you. p.s you're a kid