This sounds like a very difficult situation YoungMinds is a charity which specialises in child mental health. It might to a good idea to call the Parent Helpline: 0808 802 5544
Jean Merrilees BSc MRCOT
You can read more of my posts at: https://community.scope.org.uk/categories/ask-an-occupational-therapist
Have you had opportunity to take advice from the YoungMinds Parents Helpline that I mentioned in my previous post?
Also, if you feel that the way the health professionals are intervening with your daughter is counter-productive it is ok to express your concerns to them. Maybe best to do it in a short email so you have time to reflect on what you wish to say and so your daughter doesn't have to be part of the dialogue.
Hope things start to improve for you both soon,