45 - family history - newly diagnosed ILBC - feeling lost

Last week I was told I have invasive lobular breast cancer but as yet I don't know any more - awaiting more biopsy and MRI results. My family history mammogram showed calcification - the follow up ultrasound found the cancer hiding behind one of many cysts - the biopsies confirmed it to be ILBC.

Despite my family history I was not prepared for the shock I felt when I received the diagnosis. Both my sisters had different breast cancers. One luckily survived and has almost reached 10yrs clear - my eldest sister was gone within 24mths (despite early diagnosis).  
And what a time to receive the news!  My mum is in her 80s and lives 130miles away so we can't comfort each other in person. My boyfriend lives abroad so cannot travel to be with me - his country is in lockdown! I'm usually brave and independent but now I feel isolated and scared. I am reluctant to call my friends because I know I'll feel the need to act brave and strong - which just isn't how I feel right now. The distraction of going to work would help I think but we have to wfh and I'm really struggling to motivate myself...

Sorry for complaining. I know the fight hasn't even started yet. But coming to terms with these unknowns in this weird time for the world is proving really tough.

Any words of wisdom or similar stories would help, I think. Thank you.