Terrified and trying to be strong

Hi all -- 5 weeks after an abnormal mammogram, my mother (who is in her mid-60s) was diagnosed today with triple negative bc.  All we know is her tumor is less than 2cm and she'll have surgery on Sept 11 to remove the tumor and test her lymph nodes.  I am TERRIFIED after what I have read about TNBC and not at all handling the fact that we have to wait so long to understand if its spread, grade of her tumor, etc.  My mom is my best friend and in the middle of the already terrible year that is 2020, I'm not handling this diagnosis well.  I'm trying to be strong and supportive for her, but on the inside I am really worried about what this means for her and the likelihood that she'll be here to watch my toddlers grow up.  I guess I am looking for encouragement and insight from this community......

This is all very helpful and I know it's good advice.  I am grateful that the tumor is so small, but of course also aware that isn't the only thing that determines the outcome or what we're dealing with. I still feel like it's more questions then answers and at every turn, the news just keeps getting worse (doesn't help that with COVID I could not go with her and I feel like there are so many questions I would have asked the doctor!).  I made the mistake of trying to Google and that was not at all helpful.  So I'll do some work on this board to learn more and I appreciate having a community to help me sort out some things.  I believe the plan is lumpectomy and lymph node, then radiation and chemo (versus mastectomy) but I am guessing part of that is determined by the lymph node tests.  My father said the doctor didn't seem overly concerned with spread -- he's out of town next week which is why the surgery is two weeks away.  I just want it OUT of her body!