Hi Barbieb, welcome to the forum.
It is scary sometimes to read what we do but please remember we are all individuals with different pathologies, genetics, etc.. We have some long time survivors who stop by occasionally to remind us it can be done.
Do you have family history?
Even if you don't you might condsider consulting with a certfied genetic counselor as 85% of brca 1 women are tnbc.
Here is a website that is very helpful regarding brca 1/2 mutations.