@CathyMac - sorry to see you here - but you are in the right spot for support & advice from those who have gone before you.
Sadly, the waiting is the pits! :( In the meantime, try not to overthink it - it will do your head in :( Have you checked out the 2 surgeons you are tossing up as 'the one' for you? I googled the 2 suggested for me - and one was a clear 'winner' over the other (they sort of do a "Trip Advisor'' on surgeons now!!)
Where abouts are you based? Others nearby may be able to help you with all things BC, including surgeons! Do you have private Health Insurance? If yes, you 'could' be done earlier .... tho often there is a bit of a 'financial cost'! I went private for surgery & public for Radiation. If I needed another surgery - I would probably go public next time, even tho there may be a wait!
When my GP found my lump last Nov - it was the start of the 'Big Wait' for me (I live in a rural town up the mid north coast!) I had to wait 2 weeks for an ultrasound/mammogram (early Dec), then wait another 2 weeks for the biopsy (between Xmas & New Year) and got my actual diagnosis a week later on Jan 5 (I was still hoping it would be cysts!) .... then all the surgeons were on holidays til mid Jan ...... so surgery wasn't til Jan15th - 2 months from 'detection'.
As @Zoffiel says - Deep Breaths (lots of them!) and maybe put the Big Girl's pants on ...... You could start by getting bits together for your hospital stay ...... ear plugs, eye mask (hospitals are notoriously noisy & bright!), sudoko or magazines (don't take a novel - just too much going on to be able to concentrate), a front opening nightie makes it easier to show the nurses & surgeon your 'bits' ..... slip on slippers ..... maybe some treats (lollies or chocolate ...)
All the best as you await your surgery & results xx