i`ve got a lurcher pup about the same age and i`ve just started training him to retrieve. What i do is get his attention with a squeaky toy so that he wants it, then drop it in front of him and when he picks it up i click my clicker or praise him and reward. then after a while only praise him when he brings it up to your hand, its best to start crouched down, then when hes doing this every time start to throw it a little distance and you mite want to put a long lead on him to make sure he comes back. I do this 5 mins then hide the toy from him 5 mins on the morning then 5 mins at night. Start