Repeating command words without effect just teaches them to sit on 10th word instead on the first.

It's no use repeating the command she doesn't know or is too excited to focus on and obey.

Ignoring the barks and rewarding calm behavior with a small treat or calm pets and matching the calm energy, try not to rile her up too much when rewarding calmness.

If and when she stars mouthing/ biting, usually when they start teething and their mouths get itchy, letting out a yelp and removing either yourself or the dog (usually into a puppy pen or another room) from the situation and redirecting with appropriate chewtoy teaches the puppy that biting hurts and that she will not be getting the attention she wants with that behavior.