Raymond,
A week from now, the beast will know that you mean to beat it. You will beat it. Surgery is the first step to take towards doing something about the cancer and talking about doing something.

This is an "action" step. Keep acting on it, keep fighting it...we're right beside you all the way.

The advice you've gotten from others here is sound; get some anti-anxiety meds, today. Don't let the fear get the better of you. You're too strong for that
Much luck
Wayne