I'd find a different vet, or at least not take her comments too harshly. No one can tell you what to do with your dog other than yourself. If I told you to not feed your pup for 2 months you obviously wouldn't do that, so think of her comment the same way. Just be patient. You know that everyone is different, along with every dog. And you are NOT a bad owner for not having him potty trained yet. You love him unconditionally and that's all that matters! That's what makes you a good owner!