Two or three months old golden retriever dogs are full of curiosity about everything, and their habits have not yet been developed, so they are more efficient in training.
First of all, don't scold it easily. Scolding and beating will only make dogs feel that their parents are fierce and that the other party is not trustworthy. Therefore, in order to make dogs behave well, we must first put an end to a series of bad behaviors such as reprimanding and corporal punishment. Treat the dog with love, make it feel the happiest and safest together, and have trust in parents.
Parents must be patient when training. Dogs are very clever. They usually learn it several times and never forget it. Whenever he studies, he never forgets to reward him, giving him some usual European Cup dog food or snacks as a reward, rubbing his head and praising him.
Respect him enough, and don't call the dog's name when reprimanding him. In the process of training, if you want to call the dog's name, just say the password or praise it, so that it will feel "happy" that parents call their names.
Be sure to establish your position and don't let the dog feel that he is taller than you. Keep training every day.