My pleasure, @Simo - we all remember the shock & aftermath of getting our own diagnosis, so I am happy to be able to help xx Others will jump on with tips as well!!
There is a lot of discussion just now about minimising surgery whilst maintaining clear margins - in the old days, pretty well everyone just had mastectomies and chemo then hormone tablets - irrelevant of the staging etc. Nowadays, they are trying not to 'over service' breast cancer patients - tho you may be recommended chemo and/or radiation, totally dependent on your pathology results.
Welcome to Australia too!! You are doing so well so far, in a new country, coping with new systems! ;) Maybe, tomorrow, just ring the BCNA helpline & discuss your fears - as they may be able to give you some coping strategies or even point you to a specific area in Brisbane to help you if needed. Most hospitals have a Social Welfare person who should be able to help point you in the right direction too.
I live in a rural town without a hospital & my surgeon only had me stay in overnight because of this - otherwise, I may well have gone home the same day if I'd lived in Sydney (where I had my surgery.)
How old are your kids? There is an Australian Wide group called Canteen who they can met up with (if they are between 12 & 25), specifically aimed at helping kids who's parents have cancer. Sometimes they arrange outings or sporting opportunities too.
https://www.canteen.org.au/There is also a group here for young women that you may like to join - click here & then on the 'join button' top right corner. Sometimes members form their own support group by meeting locally!
https://onlinenetwork.bcna.org.au/group/10-young-womenHere is one thread on women with young children - why don't you whack a post up on it to reconnect with them .. (if you go to the 'Discussions' page & put 'young children' in the search area - it will bring up other posts. Or you can search any word that you like!) I will 'link you' to a couple who are from Brisbane on the post @jane84 @Gigiinbris who may be able to help you with more local support groups etc
https://onlinenetwork.bcna.org.au/discussion/19028/mums-with-young-children Take care, take deep breaths, take one day at a time ..... and remember your kids will be following your lead - if you are worried, they will be worried I reckon! As you have already done, keep your conversations with them, simple and calming - I hope you have supportive family & friends around you as well, for your own support xx