Running and playing is great exercise for the body, but exercising the mind can wear out a dog and give them a bit of balance in the on/off switch. I would maybe try to teach tracking or nosework with her. Obedience training(positions/recalls, retrieves, agility, etc) are also mind bending exercises. Because she has strong herding genetics in her mix, I'd also try to get her into some type of herding. Treibball may be an option? It doesn't have to be formal, just something to teach her what to do with her natural instincts.
She is very unique looking! I look forward to more photo's of her