It's Okay to Cry — Janice Daugharty

Bethann, a struggling college student, takes her evil younger sister, Holly, to re-raise after the grandmother who tried to raise them dies. On the rainy interstate, en route from South Georgia to Miami, Florida, Bethann lays down the rules to Holly--no more stealing, no more lying, no more recreational eating, no more drugs..no hanging out with dopeheads...no more, no more... The list goes on and on as Bethann mentally searches for reasons why Holly is like she is. If Bethann can understand her, she can fix her. So she thinks...