In case a child/teenage acts on an impulse of rage and vengeance, is restless, there is fall in grades and performance, is unable to concentrate, spends sleepless nights, shows prevalence of some addictive behavior and does not listen to instructions; start observing for repetition of symptoms like irritability, tantrums, severe anger, violent behavior, social aloofness, anxiety and depression in your child – if positive, it is time to take an appointment with professional counselor.