Rebel equals total Badass

Sasha-Lee lost everything the day her mother passed away, her dad pushed himself into work and one day returning home with a girl half his age. Just to find a very rebellious girl who is broken and shielded from the world. What happens when Sasha meets the Bad Boy of their school and he sees her secret that she has been hiding from everyone? How will he convince her to follow her dream if she doesn't want to talk to him or want anything to do with him?