I can only imagine how you are feeling. But I believe the mind is stronger than the body. So think positive and fight it! Its just a curveball on the road but it straightens up at the end. You will get through it. As for the mastectomy you have to make the decision that you feel you want to make for yourself (if that makes sense). I was diagnosed with TNBC last year at 39 went through chemo and radiation and have now just had my yearly check up and I have made the decision to have a bilateral mastectomy because thats what I want to do and am ok with it and my husband supports me and even if he didnt I would still do it . I havent told the family yet but I am comfortable with the decision and thats what you have to be also. I wish you all the best of luck - remember we all have a guardian angel on our shoulders- you might ask yourself why me? - I asked that to- but I didnt feel sorry for it - the journey made me a stronger person - a bit tad moody and snappy - but overall I have had mental growth . So stay positive and wake up each morning with a smile and say "I will beat this it won't beat me!!""