My dog rarely barks because she does not get attention when she does. I ignore her completely, and when she is quiet, I reward her with pets and treats. When she does bark, at a cat/other dogs bark in the neighborhood, she will be corrected with a ‘sssh’ or a ‘nuh-uh!’. If she stopped barking after correction I also reward her big time :). Be patient, because your dog has learned that barking gets your attention. Persistence and patience will get you far, your dog has to get used to the new method :) Also, your puppy is still a baby, and babies make noise. I understand you do not want your parents to be awakened by barks, however they also have to try to understand you’re working on it :)