Don't threaten your children. When you threaten a child, you create unnecessary anxiety and fear. If you make threats that you both know you won't keep, you are teaching them not to take what you say seriously. Threats automatically imply that you think there is a possibility that your children will not listen to you. Never give your children negative labels.
Negative labels create negative self-image which is highly destructive.
Interacting with your children gives you many opportunities to develop you own character. Bring out the best in each child. Don't expect perfection when interacting with your children. Everyone makes mistakes. If you feel that you have made mistakes in the past, begin again now.