Sending you some calm and strengthening thoughts...it is very much a roller coaster between now and that Friday...just breathe...pack your bag well ahead of time...maybe with a book or magazines you would want to read, a comfortable robe and slippers for the walking around the hospital you will be doing.
The thing to remember afterwards is the pain is temporary, sip...sip...sip...and walk...walk...walk.
Buy the vitamins and protein-shakes now, but realize that your taste buds will change dramatically after surgery....better to be prepared though.
Good luck, honey! We will be here when you get back!
Angela