I have a 5yo BRAT boy that I am working on crate training. He would "explode" and freak out when I would try it.
I then got a carrier (more den like than the wire crate) and put it in his "room". The first week, I left the door open. Then I started giving him treats by it, then inside it. Now, the only place he gets the "high value" treats is in his crate. I have left him in there for a little bit and he didnt "explode"- so it is slowly working. But with our older B's it takes more time.
Get a soft bed or comfy blanket for it and some great treats (turkey, cheese, something really good) and only let her have them in there.
good luck