I will have my surgery one week after you. So fear, anxiety, I believe is a normal reaction.
I am just concentrating on living one hour to one hour or one day at a time. I am also a Christian so I pray and turn this over to God. This actually helps me and I don't know how else to handle it.
I hour of anxiety will not add one moment of life but one moment of Trust in Jesus will add 1 hour of peace to yours, Trust him and let your Faith grow to days of fulfillment and peace in your life. We all need a way to deal with this - I am just sharing - this is mine