It is known that she came from a working class background, and she spent most of her teenage years selling Dilly bars at Dairy Queen to earn pocket money. Season 3 implies that she has at least two siblings, when she mentions that at her age, her mother "was saddled with three kids and a drunk husband".
Her background is characterized by being from a working-class family and having to work hard to support herself. She has at least two siblings, and her mother faced the challenges of raising three children with a partner who struggled with alcohol.