Bless your heart! Can you possible do some small hand sewing? That might help. Maybe you will just have to get your sewing fix here with us. Or you could PLAN projects from your stash. That could help...
I am so sorry this happened to you. My mother had this particular surgery quite successfully, so I know you will do fine with it. The sooner the surgery, the sooner you can really sew though!!
Hang in there. I feel for you.