What is the hardest age for a Golden Retriever puppy?

The hardest age for Golden Retriever puppies is the adolescent stage, which typically occurs between six months and two years of age and during which they tend to have abundant energy and a higher need for both physical and mental exercise. Teenage Goldens will also begin to test boundaries and show more independence. Training during this period requires patience and consistency, as they may forget or disregard previously learned commands.