confusing discipline with punishment. Discipline helps children develop self-control and self-esteem. It teaches right from wrong. Punishment might restrain a child temporarily, but it does not teach alternative behavior. Punishment can even damage the parent-child relationship by reducing a child's trust in the parent.
believing that what works at one time will work all the time. You need to change the way you discipline your children to keep pace with their natural growth. Different ages and stages, as well as different children, require different techniques.
thinking that when you have difficulty disciplining a child, you are a "bad" parent. Don't put yourself down if you don't get the results you want. Think it through and try again.
believing your children "should" behave a certain way at a certain time. Children are unique and special. They develop at their own speed, in their own way.
believing you must "win" every battle. It is important to "pick your battles." Don't fight over unimportant issues.
parents disagreeing in front of a child about discipline. Solve serious disagreements in private.