What is the best way to discipline my cat for the bad things she does?
The most important aspect of discipline is not to hit your cat. This could make her afraid of you and create the possibility of a fearful aggression. If your cat is doing something that is inappropriate, the best way to discipline her is to distract her with a loud noise. Once she stops and leaves the area, be sure to praise her and redirect her to something else. If she is constantly getting into the same things, try to think how you can rearrange things or provide her with alternate activities so she stays away from that area.