My 16-18 week old puppy wont stop trying to dominate me

Hello. My wife and I adopted a puppy a few weeks ago. We had cared for a family dog after her owner passed away, guiding her to the tip old age of 15, but this is our first puppy.

Meeting him, at the shelter, be was the sweetest boy. First night home, same thing. Loving, gracious. He was so proud of the big backyard he had to roam.

A few hours into day 2 we were outside chasing the ball, when he got the zoomies. He started biting at us, not puppybiting, but aggressively biting at arms and legs. The behavior then moved inside. We have plenty of chew toys that he likes to varying degrees but we are his favorite. We've tried not giving attention, walking away, positively re-inforcing good behavior, grabbing toys or giving kisses, and making very little progress. Our friends and family keep telling us he'll move past it, but it's hard to see the light at the end of the tunnel. Are my expectations wrong? Is this normal behavior? Are there any techniques we can employ to teach him hes not in control of the situation?