I'm not sure I am following all of this, but I think I get that you have only had her two days. Slow WAY down in your expectations and demands. She is just trying to figure out where she is at. Just reward her lavishly for anything she does that is good and ignore the rest. Give her a chance to settle in before you start any training. Training is stress, don't stress her until she is more settled and trusts you and her environment. She is timid because she does not trust. Think of it this way, you would not trust in a new environment on day two either. I am always amazed at how much more we demand of a dog than we do of another human.
Breath and slow down and don't over stress her.
Dutch Shepherd - Ptygo (Tee-Go) de las Flores
Rescue GSD - Freyja (Husband's Dog)