Is depression not enough?

Sharon got put into a therapeutic hospital due to a suicide attempt a month ago. She is a 17 year old orphan and the school social worker brought her to this facility, hoping that the shy and modest Sharon can benefit from this facility as she has heard great things about the staff here. Sharon has been inactive in school, despite being a straight A student, she only works hard in the library, and tries not to socialize with other people as she is some what ashamed of living in an orphanage. She is generally shy, and the therapists have found that she has been self-harming for a year now, but didn't really get her to open up to other people.