@SaraiLovesLucy
I have blue heeler crossed with sheppard lab and I have had a same problem until we started training himi to not bark .. i mean .. yes dog is your pet and yet it's a puppy but if you don't show him properly in the beginning what they can/can't do .. then they will use every possible chance ..
Also, you can take him out as much as possible because if they run out of energy, they will definitely not even think of barking