Do you have your dogs teeth cleaned / At what age?

First do not just yell.. you need to aggressively push him off you if he growls. You need to nudge him off of you physically if he jumps on you. Since he is just a puppy when he bites or teethes on u, you need to replace your hands with a toy immediately.

If you are not taking him outside that can make him aggressive. On walks try trying him and always have treats. If he listens reward him.

Try going around your house with him on leash and if he does something wrong yank his leash a little.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.