How can i teach my dog to stop barking and biting ?
my dog is only about 7 months old, she is a Maltese cross cavalier king Charles. when i play with her she starts to bite (i think she is only play biting though) but it usually gets out of control, she starts biting really hard, and when i push her away she gets more aggressive, and bites harder, if i lock her out she barks really loud, until we let her back in, then she starts to bite again. she does this to the whole family, and sometimes even guests. we got her from the pet store when she was about 6 weeks old, mum said she is my dog so i always feed her, bath her, walk her, and so on. when we got her she wasn't like this, and we treat her with care, do you know why she does this ? and how can i fix this ?