Unfortunately, almost all parents yell at their kids. But the simple reality is yelling (and nagging) is likely to be ignored or provoke angry confrontations. Neither of these outcomes improves the relationship between parent and child.
What to do?
Plan.
Look at problems logically. Figure out ways to encourage your child rather than just punish them. Write these down so you’ll remember, then talk about it with your child. Finally, and this is critical, DO WHAT YOU SAID YOU WOULD DO!!