You can train your dog much more successfully by not using treats and not giving him commands that he has heard before. Some unusual commands can be highly effective. A dog will often respond much better to a new command than to an old one, or even to a treat.
This is because it's the first time ever before (at least that I understand of) that anyone has disclosed the secret strategies used by the solution canine training market to educate solution pets.
However, while the workshop is free, I am not sure whether it's going to be online for too long, so please check it out as soon as you can.