Exceptional circumstances for bereavement- help

I’m coming on here a last effort to put my mind at ease.

This morning, I found out my grandma had passed away. It’s been really difficult to process, she’s had dementia for the past couple years and her condition suddenly dropped the past few days, so it’s been a haunting waiting game :(

I’ve got an essay due tomorrow- it’s been a really stressful and busy Christmas period. for context, I’m in my second year, I had 3 2000+ essays due within 4 days of each other. To make matters worse, the second I got home for Christmas, my laptop broke. I took it to get it fixed, just get it sent back 3 weeks later and say it would cost £400 (I know) to fix. Safe to say I just bought a new laptop as my stuff was backed up anyway.

I got my first two essays done, then for my 3rd I was going to be really strapped for time. It was due my birthday and I also only had a few days to complete it (the nature of the essay meant this would be near impossible) so I got a 7 day, no evidence needed extension. In those 7 days however, news of what was happening of my grandma surfaced- alongside juggling a lot of things and I didn’t get to celebrate my birthday (shocking, I know /j)

Coming back to today. My essay is due 3pm tomorrow, I’ve got about 1,500 words done over the past few days, 1000 to go. I was messaging my sister in the morning about my grandma, for my mum to come home around 2ish to tell me she had passed. I obviously stopped to comfort her and we spoke for a couple hours, and it suddenly has hit me and I felt a wave of emotion.

I’ve realised there’s no way I’m getting this work done by tomorrow. But- I’m scared the extension request won’t be approved. I submitted my request at 4:30ish, then realised I didn’t have any evidence. My mum has been busy with family all day and is obviously grieving. I don’t want to add to her stress and ask for evidence of what’s happened. So, I had to submit the messages between me and my sister just to provide something.

I will be able to provide better evidence in the next couple days, but there isn’t enough time for that right now. I’ve emailed my advisor (who is also the module leader for this particular essay), but it was out of hours and I’m worried he won’t see it in time.

What is the likely situation for this? I feel so selfish stressing over this whilst grieving but the stress is heightening my negative emotions right now.