It is not too late at all. Find a positive trainer in your area and go back to school. The trainer will also help you become a better leader while you train your dog.
Luckily, at 3 your dog should be past all the puppy stages and will probobly work very well with you. Training is a great way to bond.
Luckily, at 3 your dog should be past all the puppy stages and will probobly work very well with you. Training is a great way to bond.