Hang on in there. The really good news is it has been detected & you will be treated.
Its a hell of a lot to process. I am triple negative. Had surgery before xmas (some have surgery first, depends on different factors) & am starting chemotherapy this Friday.
Try to take it one step at a time, try not to loose yourself down a Google rabbit hole, everyone’s experience, treatment plan etc seems slightly or majorly different. I gave up on any comparison.
Have a few friends & family that are rooting for you.