My Stella is always up to something! I feel like I have a toddler in the house. She likes a lot of attention too. It seems impossible to get much of anything done. I used to put her in doggie day care once a week just to get a break. But she got snarky with 2 dogs there so I may not have that option anymore.
I don't really know about the mouthing. Just stick a toy in her mouth instead of your body...??? Stella was mouthy when she was younger but I stopped all play or whatever when she made contact with my skin. Maybe a time out when she gets too mouthy? Lots of reward when she is appropriate? I know I wouldn't want those adult GSD teeth mouthing me
