Limited Edition is defined as an edition of something that is limited to a specified small number of copies. You are exactly that, a specific number of copies: one.
OK, unless you’re a twin. Or a triplet… But there’s still only one you. You get it ;)
Don’t worry if you’re not like everyone else. It’s just you being you and that’s how it should be. All those other people are regular, everyday editions. You’re a limited edition.