Lately my 3 month old puppy has been showing signs of aggression. I'm not talking rough playing like normal puppies do, I'm talking actual aggression. He growls at us and attacked me while we were on a walk. My legs and arms are covered in scabs and cuts all from that one attack, excluding what he's done before. I thought he was doing so much better, but apparently I was wrong. I don't know what to do. My mother and grandmother want to get rid of him, and in part, so do I. Please, does anyone have any advice for me? I don't want to give up on him but I just don't know what to do anymore.