Aggressive/dominant 4.5 month old GSD
I have a 4.5 month old male GSD puppy who appears to be trying to dominate and is showing some aggression towards me.
I have him in obedience training, and I exercise him regularly but he stills seems to behave as follows:
1. He goes after my hands, wrists, and ankles, it seems to be play biting but he breaks skin and draws blood. I have tried using bitter apple, telling him "no", yelping but this never works on him, and shoving a toy in his mouth. He will avoid the toy and go for skin instead.
2. He jumps at me and tries to tear/rip my shirt and pants. I have tried telling him "no", turning my back on him and leaving the area/ignoring him, spraying him with a water pistol, and redirection with toys. He'll follow me and will continue trying to bite/nip/tear my clothes or skin. The only way to stop him is to wrestle him onto his back, growl at his neck, and force submission.
3. He does this thing where he HAS to get and stay in front of me, and anyone else, when going up the stairs. I assume that this is a sign that he thinks he is the "leader".
I have alpha rolled him multiple times and the behavior has not stopped, he barks and growls when I shoot him with the water pistol to get him to cease bad behavior, and while he initially dislikes the bitter apple, he tends to come back after it has dissipated and continue biting/nipping.
He is very smart and behaves when he wants to so I know he can stop the biting.
My wife lets him sleep in our bed, I disagree with this and I believe that this is adding to the problem b/c the dog thinks that he is equal to a human. She doesn't think it is a big deal. Could this be adding/enabling the problem?
He is not yet fixed and I don't know if getting him fixed will solve these problems. Can someone help steer me in the right direction as to what to do?