Consistency is key! Please be consistent no how you train your dog!! Dogs see things in black and white, either/or, no grey area. So if you say sit, it means to sit and stay, if you say not on the bed, do not ever let your dog on the bed, if you don’t want begging, do not ever feed human food or not from your plate or table. Be consistent! Mean what you say and you will see a huge difference in your dog’s responses. Good Luck!!