Hi
Giving due respect to everyone at home who are trying the best to help her, please realise that some experiences can affect a person a lot, and need to be dealt with by a professional. From the description you gave, she seems to need psychiatric help which I think the hospital is already providing.
Ask for therapy sessions too there. For a proper assessment of her personality, and working with her to come out of this.
Next Steps
if you get her home, then you should book sessions with a therapist.
just like taking a patient to any specialised doctor, understand that here too she needs a trained therapist and that's the best thing you could do as a family for her. to get her the right help. and have patience.