So I recently got a 10 week old puppy, potty training her has been very difficult. We already have a doggy door and sometimes she will go out of it, but half the time she refuses to use the bathroom outside and will come back inside and have several accidents. When I put her outside, she barks and whines incessantly until I let her in, she acts like being outside is punishment. Anyone have any tips on getting her to go outside!?