I'm so sorry for your loss. You loved her and she lived a very full life, despite the circumstances.
I prematurely lost a dog (Kacy, she was 4, got hit by a car in my driveway about 13 years ago) and I literally cried until I couldn't cry anymore. I insisted that my mom take me to get a new dog the very next day, not to replace her, but to help ease the pain and take my mind off her. I honestly don't know what I would have done otherwise, Gizmo is still going strong at 13 and has been there for me through everything. I now have two dogs of my own that are young, and I know they will be there for me when I lose Gizmo. I always tell people this, but when you lose a pet it really does benefit to just be around other dogs (even if you don't adopt a new one right away), again, not to replace them, but to help dry your tears. Big hugs.