If your aunt doesn't want to spend money on training classes, she can watch training tips on youtube. Or this site. It's full of good advice on training. If the pup is food driven, it'll probably be easier. Even with social interactions, use treats to let her know that meeting new people/dogs is a good thing. Some are more stubborn then others so it might take longer but be patient and it'll happen.
Btw... a lot of dogs hate bath or any kind of grooming. But again, patience and they get used to it enough to put up with it. When I first tried brushing Magnus, it good me 30 min to an hour the first few months. He SLOWLY understood that if he lets me do what I need to do, he'll get treats during/after it's done.
