A no-training day does not mean he gets a lazy day lying idly in the sun. Learning is still happening and this is significant and important for his development.
The delight of your new puppy is probably going to last a few weeks, maybe four if you are lucky. When 12 weeks old hits, and you will feel a slam, the Delight is going to demonstrate ungrateful, obnoxious traits.
When I see a dog showing a behaviour that is heading towards potential conflict, my first question is “what rewards are available?”
We are becoming surrounded by a culture of fast. We are being sold that immediate gratification is the only solution.
The puppy that you adored, could do no wrong, is now a living horror story. We want to use positive reinforcement, and our mind focuses on the success of what is not happening. But reinforcement attaches itself to something happening, not an absence and cannot select for a multitude of different things that are being reinforced.
Impulse buying the wrong sofa can be rectified if you swallow the expense. Impulse buying a puppy can result in personal grief for you and your family and quite possibly result in a very unhappy future or end the life of that puppy.