He looks like the sweetest dog Stacey! I hope he has many great years with you and your family.

A word of caution as far as the pulling thing, even on the merry-go-round. Pulling and playing tug can be very hard on the hips, elbows and shoulders of a young dog and can cause problems down the road. I don't let my GSD's overdo anything until their bones are fully developed. Doing high agility jumps before they are 2 isn't recommended either.

I like to take mine swimming. Throwing a ball and frisbee into the water is a lower impact way of excercising them and my dogs can't get enough of the water. Water wears them out fast too!

Most of all just have fun and enjoy his youthful exburance!