about three weeks ago I started making it normal that on every retrieve my dog sat on my left side, stayed until I gave command to fetch, then brought back the bumper, and dropped it in my hand. She did extremely well until about mid last week and since then I've noticed she has steadily been getting bored faster.
My question is at about 5 months old am I asking to much of her? I'm worried that I'm over training and training the fun out of it for the dog.