If it's any consolation I have had moments of NO STOP DID I CAUSE THIS when I noticed some events kind of parallel a history I wrote for my pet project XD

Did you write a book report for this idea prior to this? It would have been kind of cool as when/if you finally got around to writing the actual story the previous book report would prove that you had the idea before rather than after certain events that they look like they'd be based off XD