“My lapdog is piddling all over the house!” This is common among people who own toy dogs. Some trainers recommend teaching little dogs to use indoor potty spots, in much the same way as a cat uses a litter box. In addition to piddle pads, there are actual potty boxes for indoor use. Other trainers say that with consistency, you can house train a little dog. It just may take a little additional time, attention, and effort. https://doglab.com/wp-content/uploads/Australian-shepherd-staring-at-dog-treats-while-being-clicker-trained.jpg
Just as a child needs a caring parent; an athletic team needs a coach; your puppy needs a leader and a clear social hierarchy. If you do not take up the role of leader, your dog will; and you will end up with an unruly, disobedient dog. Many people try to win their new puppy's love by letting the puppy always have its way. Buckets of affection is a wonderful thing for most puppies, but it must be tempered with respect.