I know how you feel and I'm praying for you. I lost my favorite Bird Dog 15 years ago. It gets some easier as time passes.
My family waited about 2 years and got me a pup. I can not imagine how much I'll miss her when she goes to heaven.
But I know that they'll both be there waiting on me. I'm bet your Old Girl is too.
The first dog I lost hit me real hard. It was my friends that helped the most. One of them said to me, "Dude, your dog had a better life than most peoples kids".