One strategy that I have used for years now is a moment chair. When the big feelings come and feel overwhelming, I ask my son if he wants to join me in the chair where we cuddle and let the feelings happen, like a wave. He now turns to me and says, "Mommy, I need a moment in our chair." We sit. We cuddle. We breathe. He cries for as long as he needs and once the big (not bad) feeling softens, we talk. We process together. My goal is to teach him that pain happens. Fear happens. Anger happens. There are healthy ways to manage this dance of emotion. When emotional intelligence is exercised life becomes abundant, succulent and healthier. You need to give grief, pain, frustration and anger the space in order to have the joy and happiness.