Girls, how do you teach a child to calm down? ?My mom helps me from th…

Girls, how do you teach a child to calm down? ?My mom helps me from the very first days of the baby. When she starts crying, I can't even calm her down, and she actually starts screaming. Like my mom took her in her arms and immediately calmed down. After a few days, I go back home and don't know how it will be at night when she screams ?