Hi M1MMY and welcome.
I am new here too, also have grade 3 which docs are treating as triple negative as I had such exceptionally low receptor status.
It is very scary and a total whirlwind blur in the beginning. Once you know more about you type and have whatever surgery is recommended things do become much clearer and a little easier to understand.
Take it all one day at a time. I had great results from surgery and have just finished chemo. Triple negatives respond really well to chemo so fingers crossed. There are so many really supportive ladies on this site, ask as many questions as you need, there are always people here to help!
The specialists are really good at what they do, just make sure you ask about anything you don't understand, even if it's a few days after your appointments, ring because they are there to help!
Keep us informed so we can be there to support you too! You are not alone. Hugs and best wishes xxx