The Bichon Frise are very gregarious dogs. My father's best friend is a reputable Bichon Frise breeder. He only bred the dogs that were closests to the breed standard and had the friendliest tempermants. I've owned one myself since she was a puppy and I've learned that they respond very negatively towards aggressive training.
I learned from my father's friend that clicker training is the most effective way to teach Bichon Frises. But you need to stop your mother from abusing the dog, especially at such an early age because it will have long term negative social effects. For potty training the only way I see this working in your situation is to hire someone to walk your dog. Since both of you are on a very busy schedule, this will also help the puppy burn off the pent up energy.
But if you really care the puppy give him back to the breeder you purchased him from. If they were not reputable find another Bichon Frise breeder and explain your situation to them, I'm sure they will take in the poor puppy.
I learned from my father's friend that clicker training is the most effective way to teach Bichon Frises. But you need to stop your mother from abusing the dog, especially at such an early age because it will have long term negative social effects. For potty training the only way I see this working in your situation is to hire someone to walk your dog. Since both of you are on a very busy schedule, this will also help the puppy burn off the pent up energy.
But if you really care the puppy give him back to the breeder you purchased him from. If they were not reputable find another Bichon Frise breeder and explain your situation to them, I'm sure they will take in the poor puppy.