Thank you everyone for your suggestions and advice!!
The exercise thing was definitely an issue. We had to wait for him to get all of his shots before we could take him for walks (parvo virus was going around in our community so I had to be extra cautious). Once he got all his shots and we started taking him on more and more walks, his behaviour improved quite a bit. I still get moments where he will jump and bite me, growl, rip my clothes and no matter what I say/do he will not let go or stop. I eventually have to pick him up and put him in his crate for a time out - he is getting big quick though so I won't be able to do that too much longer.
My biggest worry is that this will continue as he gets older, and I want to nip it in the butt beforehand, so we don't have issues later on. Although, a lot of people have told me its a phase and he will mellow out after he is neutered and gets past his adolescence stage.
Also, he knows a ton of tricks: sit, stay, rollover, come, lay, shake a paw, high five. We work with him daily and when we take him for walks we make sure he walks right along side us and give him corrections when he pulls or tries to veer off the path. To be honest, he is a dream in all of these areas and picks things up really fast. I have started to ask him to sit or lay down when he starts getting playful aggressive and that helps sometimes.
I really appreciate all of your advice!!