Kathy, you are not alone in your feelings. We all handle them differently. The first two times I went through the diagnoses, treatment and recovery with hardly no emotions. I got done and went back to my life and didn't give cancer much of a second thought.
This last time was totally different. I went through extreme emotions, anger that I had it for a third time, why me phase, fear phase since it was a third time, and a bit of worry along with it all.
I find for me I get through it best if I concentrate of the positive things in my life. I can find something good in every situation I am confronted with, and I concentrate on that.
Others will offer their help and advice too. I wish you peace and healing to finish your fight!