Are some dogs untrainable?

[permaquandry]

Permapup 4 mths, mini schnauzer girl. Attending puppy training once per week. Is ok at it but very inconsistent, they use a clicker and treats which I don't use too much at home as it would be click & treat for every waking minute,

She is fully housetrained but I think that's more to do with good control than 'training'. She bites every time you're near her, to say hello, to play, but no aggression.

She will respond to sit, if there is a treat in sight but rarely does any other time. Walking is a mare, I try to take her everyday for a short walk but she just tugs and circles me or bite my shoes. I stop and ask for a sit, which she occasionally does and will only move once shes at least stood still but then she's tugging again.

I've changed her food to Symply and her coat is much nicer and she smells less but is still so bitey and hyper. Got the Perfect Puppy book. Going to read again and follow it to the letter. Think puppy classes were wrong for us, she would probably respond much better to one on one.

Has anybody else been through this and ended up with a well behaved dog? Can appreciate this may just be the puppy stage but I'm worried if we don't get it right now, she'll always be like this.

[lougle]

'Clicker' training is also used in sports, SEN, etc. Tagteach

For example learning high jump

Obviously, with people, there's a lot more verbal input, but the principle is the same - if you hear the click, you got it right.