We dont know much about Faiths childhood. We know she grew up in Pennsillvania somewhere around Boston. We also know her mom was an alchohalic, who never paid attention to Faith, and beat her up. At some point in her life she dropped out of high school.When Faith was called a a Slayer, her first watcher was killed by a vampire. After comming to Sunnydale to kill the vamp who killed her watcher, she met up with the scooby gang, and became friends with them. Persuaded by the Mayor, she turned evil. After killing many people, that other Slayer, stabbed her and put her in a coma. After 8 months, she woke up, fled from Sunnydale, and looked for help in Angel. Faith wanted to change. She wanted to be good again. Angel helped her, and Faith turned herself in for the murders she did. We are all proud of you for that Faith, it took a lot.