If it become too much this dog is still pretty young, see if you can get some help from a lab rescue group. Just hop online and do a search. I have had several labs and they stay pretty active and puppy like. One of my favorites didn't really calm down till arthritis set in. literally. If you can just train basic little commands like down, sit, lay, drop and quiet. It helps alot. I had a lab grab a pet rabbit once and I just knew it was gone. I have never yelled commands so fast but the rabbit was only wet and scared in the end.