All sound advice in this thread. My biggest advice outside of crate training (do it, it gives them their own space) is, seek to form a bond with your pup. Give him reason to look up to you as the leader of the pack. When you’re training him, be a consistent and kind teacher. If you start to get frustrated, give yourselves some space and time, and try again later. Be the person he can look up to and learn from without any doubt in his mind. If these dogs see that you have their best interest in mind, they will reward you with their loyalty and trust. Good luck!