Janine Domingues, PhD, a clinical psychologist at the Child Mind Institute, told me that the challenges I face with my toddler and the feelings of frustration are something that many parents face. “You are not alone,” she said. “Developmentally, a toddler’s brain is developing and changing at rapid speed, and that comes with exhibiting intense emotions, acquiring language, and yet not having the full capability of expressing what they want or need.