Swimmer to Superstar

Noah dies and meets ROB. The ROB turns out to be Poseidon, who gives him nerfed water powers and sends him to the real world in the year 1961. But he regains his memory only when turns 18 in 1979. The MC becomes a world class swimmer because of his gifts even before he regained his memories, and plans to conquer the Olympics soon. He even gets a full-scholarship to Harvard as well, but due to his financial condition, he agrees to model for a local ad agency. A casting director discovers him, and wants to cast him in the movie [Blue Lagoon]. Noah is a little hesitant about it because the movie was infamous for its prolonged nudity, but IRL conditions forced him to consider it….