that's really sad horseshoe! I feel sorry for you and I wish you a lot of strength!
Both my parents are alive. But my grandmother died february 5th (2008)..
I don't know why.. but it kind of felt like being an orphan. (all my grandparents are dead now)
I don't know if it's usual in other countries..
but we 'saw' my grandmother before we had a mass in our church (in the evening before the funeral)
it wasn't scary.. but really odd, she wasn't 'her' anymore.
In the mass of the funeral I read a few things.. 'last words of goodbye'..
and the most weird thing was:
at the day she died and a few days after.. we had a lot of rain. And at her funeral the sun shone.
Like she was still in charge

(I like to believe that)
I think after a week my sadness decreased.. but I still miss her.
I don't want to have another funeral in a lot of years.
(Before my grandmother's funeral, I can't remember other funerals, I was very young when my grandfathers died, and my mother's mother died when she was 9..)
But I do think you have to go on with your life after a beloved one dies.
You can't bring him/her back.
But you can think of happy memories.
And spend time with the ones you love, who are still alive.