You can space out, binge eat, drink, use drugs, or engage in other self-harming behaviors just to numb the pain. Or, you can express your feelings, accept them, validate them, and learn from them!
Dr. Robert Leahy, a psychologist who specializes in cognitive-behavioral therapy, wrote an article on this very topic that is extremely helpful in terms of learning how to regulate our emotions. Read on for some great wisdom in the area of emotions!