I am deeply sorry for your loss. Most all of us have been there and know how you are feeling. Spend a lot of time with and love your other dogs to the fullest. That, along with the passage of time, has helped me since loosing my childhood dogs over the last few years.
Thank heavens for our other four leggers left behind. It never goes away, but time does do some healing. I am very sorry for your loss. Been there before and it is never easy. Be kind to yourself and cuddle the remaining ones for comfort.