Hi Amylou,
I just had my bypass surgery yesterday morning! I was discharged earlier today and am now home resting. I think they do purposely try to "scare" you to make sure you really want it. I was really nervous and scared before surgery too, but I walked in and laid on the operating table, they put a mask over my face and made some adjustments to my position and the next thing I knew I was waking up to my mom and my fiancée in my recovery room! Also, my doctor allowed me anti anxiety medication before surgery which also helped to soothe me before I went into the OR. You will be fine!