I don't have children yet, but during my adolescence there were many children at home because my mother took care of them (daycare), in those times she had up to 9 children from 1 to 4 years old at the same time in her care, it was crazy for me to be at home in those times hahaha. I really don't know how my mother managed alone to deal with so many little ones, but she always kept everything in order, she even received awards because she helped many children to overcome stages of malnutrition and things like that.
Now, the current issue is my nephews, the youngest is 3 years old and she throws tantrums for everything, the way my brother and his wife calm her down is by talking to her and taking things away as punishment, example: “Today you are not going to eat cookies because of your bad attitude”, that way she calms down hehehe.