fisk,
You are grieving and it is a long, slow process which has been made longer because you were unable to share your thought with others. Talking it out with a grief councillor will help a lot. The sooner the better. It's never too late to talk to a councillor about grief. If you find one that doesn't seem to be very sympathetic then look for another one.
Wondergirl's suggestion is a very good one. My daughter and I did something similar when her baby died. I never had many toys as a child, I never had a doll or a teddy bear, at least not one that didn't end up being broken by one of my siblings. I bought a teddy bear in my granddaughter's name. Now I have around twenty teddy bears, other people buy them for me in her name. My daughter collects beautiful angel ornaments and displays then on what we call Jessica's Shelf. Since my mum died in 96 I used to buy some roses on her birthday and place them in the centre of the dinning room table in memory of her. Now I buy them whenever I think of it and place them on the table saying "There you go mum, just for you." My grandparents (on my mum's side) were my saving grace while I was growing up, they were very generous to me with their time and their money. I often drop a few coins into a charity box in their name. These are symbolic acts and they can be very healing. I suggest you do something like that to help your own healing process.