Congrats, you have a normal one year old lab
! Labs tend to keep many puppylike tendencies for several years.
My best advice is consistency, training, and exercise. He should be getting plenty of daily exercise as well as short sessions of daily training/obedience work. Also make sure his brain is getting a work out. Get him a treat ball, buster cube, tug-a-jug or other toy where he has to work to get his food out of it. My lab LOVES that!