Basic obedience should be well underway at thirteen weeks. ie sitting to voice, hand, etc.
The pup should also be encouraged to retrieve, and carry, in the house. Use a ball or one of your rolled up socks.
Slowly, slowly, is the way to go.
Do not let the dog run too far in front of you. Keep it in, tight. Rest assured, once the dog gets onto game, not allowing the dog too much leeway now, will pay dividends.
There are good books available.
Getting the dog to read them is another matter.
Steve.