My condolences . . . . . .
In our extended, multi-species family, we have experienced the sorrow you are going through several times in the past few years. I and my spouse usually find solace and support, first, in each other, and also from conversing with others in similar circumstaances. We have found that, by entering the phrase "Rainbow Bridge" into almost any browser, you can turn up a host of pet-loss support sites of varying degrees of interactiveness. Some offer all sorts of boards, forums, and such, while others are simply a place to meditate with images, poetry and prose thata has been posted. Nearly all of them will have a recitation of a poem entitled "Rainbow Bridge" that I still cannot get through without tearing up.
Best to you, and you will, I am sure, meet Ziggy at the Bridge . . .