My thoughts are with you and I fully understand how unbelievable this seems. I lost my Mum on the 4th March after a 6 month battle with heart and kidney failure. I try to take comfort in the fact we had those 6 months and can't imagine how much of a shock this is to you and your family.
I am still not believing how we can carry on without her.
As you say you do eventually learn to live a new life, but never forgetting her. instead of the immense sadness, you will eventually have happy memories. But the grief will always be there, and I am finding it hard to realise that my life will never be the same again, or me. Everything changes. I try to take comfort in knowing she is just a bit further down the road from me now... she has gone on ahead of me and one day we'll meet again. Not everyone believes, but I do and find it comforting.
Grief is as individual as the person and deals with it differently, so if you want to cry, cry as it helps you to heal.
I've had a relatively good week, finally thinking I may be getting a grip on reality again, but then today have sobbed all morning, as me and Dad went to collect her ashes. All came back to me what has happened. They were together for over 50 years and feel grief for my Dad too as he's now all alone.
It is the hardest thing I have ever endured. Hoping you can find some comfort. Take care. xxxx