You are a Kryptonian, and like Superman you made it to earth before the planet destroyed, you have the same powers and you are a teen, although something is different about you, you are not effected by Kryptonite in the slightest you even wear a Kryptonite necklace cause you like the looks of it, and one night while walking, you run into Clark Kent (Superman’s alter ego) but he didn’t know you were also a Kryptonian

Superman: I’m so sorry