May I recommend a book the Stephen Ministry leaders gave to all the Stephen Ministers at my church as a Christmas gift? It may help. It is called "Cracker Still Lives Here - A Story of Living, Loving and Healing" by Connie Cummings.
The introduction says the author wrote the book to encourage expression of emotion when grieving over the loss of a pet. She begins by saying "There's a long road ahead of you. I know...I've been there."
Please let me know if you are interested in the book, but cannot find it. I'll see if I can find another copy.
May God bless you richly - and may you heal from this loss and regain your joy in living - even without Trinity. Rev. Sally