I wrestled with this too. At 66, I decided to get one more lab and did so. Sam (Samantha) is a terrific British Lab, she really lifted up my wife and I and we're thrilled to have her. She is seven months old and we love her to pieces. She is training on birds and guns right now, very enthusiastic and of course - loves to work with the birds.
Yeah, I get it about struggling with saying goodby. I try to focus on all the time we did share with one another.
Deerstalker, I hope your fond memories of Dazy brings you some peace.