Yeah, sucks that big dogs don't live that long. Mine is getting a gray muzzle and he's only 8. He has definately mellowed out, he would rather be inside than out. 2 years ago, he never wanted to be inside.
I would find her appropriate chew toys. You want to discourage biting and chewing on you. I know German Shepherds can be very "mouthy". Good luck, and may your patience be with you. Puppies are a lot of work. I'm not looking forward to starting over when my guy goes. Although he was never a destructive chewer and he would break down the back door before he potties in the house. But all the training and energy, ugh, makes me tired just thinking about it. You should consider cats, they are great......:p
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