Nervous about surgery

Thank you @Mazbeth that is really helpful. I'd also pictured big bandages all around my torso so good to know what to expect. I've bought a couple of button down tops in anticipation but I have to say, the drains worry me. I will do the exercises as instructed. I'm worried about my reaction to looking down and seeing stitches where my breasts once were. I keep trying to picture it so that I don't get too distressed when it actually happens. Not that my boobs are particularly lovely, but they are part of my body and I am slightly freaked out at the thought of not having them anymore. 
I guess everyone goes through this panicky feeling and I just have to woman-up and be brave but I'm still feeling so nervous. Thank goodness for this site and the support of other people who have gone through this. 
I really appreciate your comment.