Today I went for training with some other Brittany's and one was much smaller then my Cooper. I asked the owner how old he was and was floored when he said 2 years old. I am like WTF. My dog is 5 months old and is 33lbs. I am really worried about this now. Should I be? Am I feeding him too much? We don't want a huge dog but will love him even if he is 60lbs but want him in the range Brittany range. Any thoughts on this. First time dog owner that knows very little so be easy on me

Claude