I'd be firstly inclined to say, "Sorry that you have to be here," but, actually, I'm glad you found the forum . . . and I think you should be grateful that your physician followed a "hunch" and proceeded further with diagnosis . . . and that you'll now have the opportunity for treatment and a better and longer life.
I, too, was shocked when I was given the "news." Today is the 1st Anniversary of the removal of my cancerous prostate and I visited with my surgeon/Urologist. I feel great and appreciate the work of the medical professionals who have been advising me - and my life is good. This "news," shocking as it is, doesn't have to be doom and gloom. Yes, it takes some time to get accustomed to the situation but, thankfully, for many or most of us, there are treatment options that'll take care of the problem. My wish for you is that you'll fall amongst the group of us for whom the prognosis for a long life is excellent.
Take the time to read through the many prior discussions here to gain a better perspective of the road ahead, options to consider, after-affects of the various forms of treatment, etc. But I urge you to place your confidence and guidance in the professional medical community - the people who will know you, your past medical history and the disease as it sits in you at this moment . . . and allow them to do the testing and analysis sufficient to make recommendations for your situation.
As you read through the discussions on this forum and also receive suggestions to your posting in this particular discussion make some notes of things you want to ask your professional advisors about so that you don't get rushed or forget when you meet with these folks. From what you've told us in your brief introductory remarks it seems your physician(s) don't have concerns about the immediate future, and that's a good sign.
After I was diagnosed and the schedule was set for surgery, I flew to Rio de Janeiro for a pre-surgical visit . . . and lived it up . . . because I didn't know what the future held. I had a hell of a time in Rio. A year later I can stand in front of anyone and be proud that I'm alive, that I think I made the right treatment choice for me . . . and that I just returned from a 12 day trip to Istanbul . . . to celebrate my first anniversary free and clear.
Best wishes for a healthy future. Keep us posted along the way. There are lots of folks here who will offer support, and no question is too "stupid" to ask.