How to start my sort-of sad story?

It's about a sixteen year-old girl, Erika Night, who suffers severe social anxiety disorders. She has lived with her Nan because her parents died when she was just two in a horrendous house fire. Erika is very shy and closed up, not letting anyone inside but her Nan and a small disabled girl that attends private school. Erika's Nan is really worried about Erika, so she signs her up for a summer camp that might help her. Erika is appalled. Her Nana apologizes and says it's for her own good. Erika meets the head, a nice woman who too has social disorders. She has two sons that live with her in the camp. Erika falls madly and pionately in love with one of them, George, while Simon likes Erika. As he finds out about Erika and George, he goes on a rampage, ending up KO'ing a girl and a teacher. The story ends slightly happier, Simon is dating the girl he KO'd, and George proposes to Erika. She accepts, and in a five years later flash forward, Erika has a beautiful toddler called Maryam.