@kato79
Easier said than done, but please take a deep breath! This is a so and so however, you are on the road to finding out how to handle all of this medically and you have found the BCNA website!
We are here to help you through and allow you to rant as much as needed - we've all experienced the need for ranting at some stage of our experience.
Here's a link from the BCNA website, a wealth of information, that you may find beneficial when it's time to speak with your Children.
Telling your children you have breast cancer (bcna.org.au)And other links
Breast cancer in the family (bcna.org.au)Reclaim Your Curves - WelcomeAlso has information sheet on What to Pack for Hospital and this website is beneficial if you do go down the path of Mastectomy and some form of reconstruction.
Best wishes and no decision are right or wrong - it is what is best for you!
Take Care