Welcome to GRF. Your first post is a very common theme here.
: Don't be discouraged as most golden puppies are little land sharks with razor sharp teeth. You can find lots of threads dealing with this issue but I will try to give you a quick recap: When your pup nips give and exaggerated "OUCH" and offer him a chew to as a replacement. When the pup bites the chew toy say "Good Boy" in your happiest/highest voice you can muster. If your home is like most golden puppy homes there will always be a chew toy within arms reach. Now just repeat this exercise 100 times per day and your pup will catch on I promise.
: Most of us have been through the very same scenario....hang in there it does get much better.
PS we LOVE puppy pictures.
PS we LOVE puppy pictures.