Yes, along the lines with what Chiilaa said, understand that no real work can happen without relaxation. A simple D-ring french link snaffle would be a nice inviting bit. Walk her in the above mentioned circles, bends and serpentines, over ground poles if she's cool with it, with the sole goal of achieving relaxation. She needs to know that nothing bad or sudden is going to take place and that you are going to be a consistent leader up there.
If she is all go, just walking might be counter-productive to her energy level. If that's the case, a few minutes of trot in between walk sessions make be necessary to allow her to stay calm, but only do that if you absolutely have to.
Relaxation is #1 priority for now.
You just have to see your distance...you don't have to like it.