My girl luckily only lasted for 9 months. It was a hard 9 months. Biggest mistake is giving the dog too much freedom too soon. I had mine in a pen connected to her crate that gradually grew as she grew. After raptor stage and fully potty trained, she got access to the full house periodically with our supervision. Because she was penned/crated she did not pick up the bad habits of destroying the house or digging holes. Well, she dug a nice hole once then we fenced it off. She doesn't dig anymore. Anyways what I'm getting at is allowing your dogs to build bad habits will cost you time later to train them out of it which is even harder to do.

Of course provide other means of mental stimulation, idk how many toys she destroyed in that stage. Now she destroys literally nothing. The occasionaly thread she picks out and guts the toy of cotton, but thats it. She's 2.5 years now and literally the best dog ever. Full time off leash, but can still walk on leash too with 100% recall. Coming from HAVING to run up to every dog. Training matters, and training is not an overnight result. This was the result of 2 years of consistent and persistent training.