Hi Gilly
It was so brave of you to share your story about Spice. It sounds as though she had a marvellous, loving home with you and you took great care of her right to the end. It's such a hard time and hurts so much. You know you did the right thing for her but that doesn't really make it any easier. But remember that you gave her years of happy life which she might not have had if you hadn't happened to come along.
If you can, try to keep looking at the old dogs waiting for homes on the Oldies site. One day, one will really touch you and then you'll know you're ready to care for another dog.
I've not really got the hang of posting photos on here either - hopefully someone will help you out.
Take care and don't expect too much of yourself too soon.