It's almost spring and puppies are on everyone’s mind. "What to do" seems appropriate for many. Buy a DVD, books or program and just do it. Mentors can be helpful, too. However, most of this advice is solid if one accepts that every puppy is different. Add to this the complexity of environmental differences and the situation demands a well researched initial plan. How much time is available and goals are significant factors. If you've been there before there is always the possibility of improving. Puppies are not simple.
Taking all that into consideration, here is the "time line" of one pup from the day he was C-sectioned into his world. Gunny's first breath wasn't easy. Keep in mind every pup is different and progress is often in "fits and jumps" depending on many variables. The “good” is often all that you read about, but “the bad and ugly” can happen. How those rougher times are dealt with may make a huge difference.
In terms of environment, Gunny's owner/trainer is retired and there are three older dogs in the "pack". Retriever training was already a routine in which he had to adjust to. Gunny received his own special, individual times as he "got up to speed".
Every single day of Gunny's first six months have been detailed. It's a true story (no fiction or missing gaps).
”Testing the Waters” (link)