I plan to write my own article on reducing the stress of living with a teenage dog (for both the human and the dog), but in the meantime, here are great resources from other trainers:
Articles
Sharing your life with a teenager can be overwhelming. Just as soon as you finally make it out of puppyhood, suddenly your teenager is starting to behave in ways you have never seen before, or certain skills you have been working on have started to unravel. What does all of it mean? Is this just a phase, or will my dog be this way forever?
Say Goodbye to Teenager Troubles
The most challenging of all may be our mindset about it all. While our dogs may be bigger in size and strength, their thinking capacity is closer to that of a puppy than an adult. So, it is up to us to help set them up for success in all our training sessions to help them through this difficult time. But how can we do that?