I don't know if this will help or not, but it is a trick I used that worked for me. Can you try to imagine that she had a bad car accident and has had brain damage. It is temporary but for now her personality and memory are altered. She may look and even act the same sometimes but she isn't. Only trick is there is no external visible sign of the damage.
If you can't then you definitely will need space to get your footing.
