Sorry to hear about your diagnosis. I have breast cancer.   In  some ways the test and results bit of the process was the worst part for me -Now I am through that and have a treatment plan  I feel more reassured and calm.  You might find the same.  Once the shock wore off I got used to it and found "the new normal".  I hope you find the same. 

Iid write down all the questions you want to ask so you are fully prepared when you see the Dr next week.

Good luck with everything.