I feel so sorry to hear this. Be positive. Maybe it is not cancer? Even if it is, you have the support from many many people who love you. I am sure you can fight againt the disease and win.
I know quite a few people who was cured. So try to think of the good side.
How I hope I can help you! I feel so incompetent being not helpful. But you have all my best wishes for you!
Wish you a good recovery. Wish you a good mood. Take care.