Marcella - sorry to hear of your diagnosis.
You will be feeling highly anxious (obviously) . Do get help about this - see your GP - ask for advice about anti-depressants. They helped me enormously in coming out of the depressive fog of (what felt like) impending death.
That was 12/13 years ago. The treatment has a high success rate - it can be very arduous - but very copable with the right support.
good luck and keep us informed please