My mom has triple negative breast cancer..

I just.. Idk.. We thought it was just contained in the breast but today we had an ultrasound and they found an abnormal lymph node.. Doing a biopsy tomorrow. And finding out by Monday afternoon. But we kind of all already know.. 
Hoping it hasn't spread beyond the lymph node.. The surgeon thinks it's either stage 2 or stage 3. It's a pretty big tumour. Triple negative breast cancer is usually more aggressive and a bit harder to treat.. And is spreads pretty quickly.. It also has a bit of a dropped survival rate. I am not sure exactly how much it'll drop if it's stage 2 or 3 but it still drops a good little bit..
That's the 4th woman in my family with breast cancer. The doctor said that I need to get a genetics testing for BRCA genes and I should start getting mammograms at the age of 30 instead of the normal. We have so much fucking cancer (of all types but specifically breast cancer) it is fucking ridiculous. 
Idk.. I just don't know..