Sorta like a rock star : a novel
(Book)

Although seventeen-year-old Amber Appleton is homeless, living in a school bus with her unfit mother, she is a relentless optimist who visits the elderly at a nursing home, teaches English to Korean Catholic women with the use of rhythm and blues music, and befriends a solitary Vietnam veteran and his dog, but eventually she experiences one burden more than she can bear and slips into a deep depression.