Normal Puppy Behavior or Frustration/ Anxiety?

Hey all!! New to the community, my wife and I got our sweet girl pup at 6 weeks I know it’s early but it was a matter of unfortunate circumstance with the owners of the litter they needed to get the puppies to homes sooner than later. Besides the fact, our girl is now going 13 weeks she’s extremely intelligent knows sit, platz (down), drop it, and leave it (90% of the time). I know puppy bitting is normal but there are times where her biting feels very targeted and intense, and I feel it gets out of hand. The normal signs of aggression are not really there. It’s usually very mouthy(like a little piranha), jumping, and light barks not the deep serious barks when she doesn’t like something which is very rare. Sometimes it feels like a dominant action but I want to try and stay away from alpha rolling because i want don’t any negative feedback or correlations. We’ve tried redirecting with toys, sometimes commands work momentarily, and giving her space and walking away doesn’t really work when she’s in piranha mode she gets relentless and chases to bite like it becomes a game. Tips on how to control this behavior before it gets out of hand? Is this something I need to worry about or will she become more aware of her bites as she matures?