It won't make it better but you will feel better if you shower and get dressed.
I felt guilty just getting on with things.
But if it distracts you for ten minutes it will give your brain ten minutes rest.
Our souls are tougher than we think.
I thought I would die when my son died. But I didn't. You will find your way. But you are in enormous shock.
For me I was worried about frightening my other son. So I got dressed for him, I showered so he knew life went on. I got on so that he knew life went on despite the most horrendously sad thing that could happen happened.
It's awful. There's no getting away from it. It's tragic on so many levels. Your body and brain are doing what they can to protect you.
Little steps. Today maybe shower.
Maybe think of showering as a way to help your mum as she will be worrying about you.
But - whatever advice you get you have to, and will, find your own way of grieving and dealing with it.