J.S.
Hi S.,
I used floortime therapy with my son (also called DIR). You get on the floor and play with your child, you join her in whatever she is doing and make statements like "It seems you are sad right now?" Remove the lectures, they don't work, remove the denials of "'Of course I love you" and just get down beside her and make an observation "It seems you are upset and scared right now". Then play dolls (stuffed animals, whatever). You try to take the child role, whatever she will let you and see what info you get.
Also, there is a book/tape called "How to talk so your children will listen and listen so your children will talk". It is an old book and fabulous. She is little, but the theories are still applicable. J.