Good that you now have a date for your surgery @BroniD - just the waiting can be a real pain, eh?! Try & keep busy between now & then ..... start getting things 'ready' - A nightie that opens from the front, ear plugs & eye mask (hospitals are always very BRIGHT & noisy!) some magazines or puzzles (you can never concentrate on a novel!) If your Breast Care Nurse has provided you with a support pillow, take it with you - it just takes the weight off your affected arm & it will become your best friend when home!!
Take advantage of any offers of help from family & friends - be it cooked meals, mowing the lawn etc. It can be hard at first to accept their generosity - but it just takes the pressure off YOU!
Have you been able to chat with your friend who has had BC? She will have lots of tips for you and full understanding of what you are going thru. I was supported by 5 friends who've had BC (from 5-15 years clear) and they were/are fantastic mentors for me.
Try & keep busy between now & then, doing what you love doing - try not to use Dr Google too much .... everyone's case is so unique, it could just confuse you.
All the best for your surgery - we'll be thinking of you xxxx