My very soon to be 7 months old girl is also very mouthy and always has been. When she was small, we were desperate for her to lose her sharp puppy teeth as we thought her behaviour would stop - no it didn’t, the small puppy teeth were replaced by very big adult teeth that hurt much more
. Her teeth are absolutely huge at the moment but I guess her face just needs to get bigger
Luckily she adores antlers but gets through them at an alarming rate and they are not cheap. I always get the large ones and choose them myself as I have worked out which satisfy her the most. She likes to get the inside of them out
When she is getting practically mouthy with us ( gnawing on our knuckles or pulling sleeves), I can’t put her in another room or leave her (cos I know she will be up to mischief) so I put her lead on her and put the handle over the door knob and completely ignore her. This ‘time out’ helps her to calm down and when she is unclipped she is much nicer. Often just 1 minute away from us is all it takes.
Maisie has been a VERY challenging puppy. I have had lots of puppies in my time, even 2 litter sisters together but Maisie has been by far the worst. There are often moments in the day when I don’t like her very much (which I then feel bad about) but I KNOW it will get better