My motto is always “a tired dog is a happy dog!” And a well behaved dog.

Your dog needs more exercise. It’s great that you take her out for two hours of walks a day, but some breeds need more then just walking. A lot of young working breed dogs need time to get out all that energy and zoomies - and often a walk just won’t cut it. I would recommend taking up running with her. Try Turning one of those 1 hour walks into a 30 min run. Dogs have a great way of getting us humans more fit too :)

My 10 mo dog is like Jekyl and Hyde when it comes to good behaviour and exercise. If I took my dog only for walks for 1 week straight he would be a fking nightmare. Instead most of our outings are running or hiking, and after a good run, hike or fetch session he’s super chill and ready to listen to my commands and just sleep by the fire.

I would agree that your dog could probably benefit from additional training and calming exercises! But the foundation to all that is making sure your dogs exercise needs are being met first, which it sounds like they currently are not.