I bought a 2 monts old GSD and i need to start training him!!?

GSD are a brilliant breed.I have 2 of them.Start teaching IMMEDIATELY whatever u want from it~ be it sit stay down come.YOUR DOG SHOULD ALWAYS come when called that is huge! Dogs want to please its consistent behavior from there human that they need.I would say crate him while ur gone,there are so many reasons why! Make him a treat that takes some time to get to you can buy them at the pet store or get a old wash rag wet it and put a glob of peanut er in the middle tie it in a knot and freeze it over night then before u leave give it to him that will keep his mind for a short while.Is there anyone who could come in to see him and walk him mid day that would help also. A kong chew toy filled with peanut er or cheese is a good brain trigger.Can u leave the TV on or radio? Tv is more stimulating any way enjoy him GERMAN SHEPARD'S ARE GREAT!!!!!! They are smarter than u think! Keep us posted~Good luck :)