Survivor (a Supernatural Fanfic)

Elizabeth was a normal teenager, well kind of, apart from her knowing about the supernatural, which her dad thought her. One day, her dad left and, a little while after, her mom was killed by a demon. she was stuck with her step-father. when her mom died, he started drinking and beating her. but then, she meets, sam and dean winchester, who she finds out are her brothers. she's gonna go on an unforgettable road trip.