Reincarnated?! (South Park)

Sarah Woods hated her life. Everyone around her was toxic and she wished she would just disappear. Unfortunately, she got her wish. After one of her school bullies pushes her off the roof of their school by accident, she snapped her neck and was killed instantly. She thought that would be it. It wasn't. Instead of staying dead, she reincarnates into South Park, a show she had seen once. An adult cartoon. Not only that, she was reincarnated as Eric Cartman, one of South Park's most troubled and hated characters alive.

How is she going to survive in a world where everyone hated and feared her? This couldn't possibly be healthy for her sanity....