They didn't know

Raven always got bullied at school. She didn't like her school, the people there and she hated herself. She was always obsessed with a wizardizarding school called Hogwarts. But it wasn't real, was it? Than it happened, something she had been waiting for her whole life. She grabbed her stuff and before she even knew it she was on the train to Hogwarts. It was weird but cool. But why did things happened and why?