I got surprised with this guy today his name is ( Teddy ) Bear. Hes only 9 months old...and omg he…

I got surprised with this guy today his name is ( Teddy ) Bear. Hes only 9 months old...and omg he eats so much!! And not to mention the big piles of... In my back yard. Our other dog likes him tho and our cat doesnt mind him being around any more than our other dog. Oh and he trys to eat everything. I currently in the middle of baby proofing i guess i mine as well puppy proof too. Hes the size of a full grown dog and getting bigger. His paws are the size of my palm. They grow out of thia right? Lol he dont like comming to you eather do any of you have advice on how to train this big baby?