All of my dogs are crate trained and they enjoy their crates. They are den animals and in the absence of me, or if their are too many people over they will go to their kennel to relax and get a grip. I would leave the door open and allow her free access to it, she will venture out when she feels comfy, and return when she feels anxious.
Our crate doors are almost never closed, except during feeding (my cocker is food aggressive with my dobes) and when there are children around (the cocker has bitten my sons' friends before)

Good luck,