We should put ourselves in the same position as children, have empathy, and show our adult characteristics at the level of physical knowledge.
Managing children is a very annoying thing, but if you are also good at putting yourself in the position of your mother's mother, you will feel less annoying. On the contrary, if the children are crying and noisy, and you lack methods, it will be difficult to manage.
For the management of young children, try to do more activities, let them move more, and let the children listen to you honestly.