You have to put yourself in her shoes. Her world had been turned inside out and upside down. Everything she has known in the past is gone. Even the simple things like mac and cheese for dinner on Wednesday and Joey in math class is a jerk and always has been, is gone. Everything is different. I second getting her into therapy and finding a good fit with a therapist. Having someone to talk to about all the changes and to reassure her is what she needs right now. She needs to adjust to her new world and find the new stable items.