Teens who used to spend a lot of time with friends may now spend most of their time alone and without interests. Teens may not share their feelings with others, believing that they are alone in the world and no one is listening to them or even cares about them. Low self esteem and guilt Teens may assume blame for negative events or circumstances. They may feel like a failure and have negative views about their competence and self-worth. Extreme sensitivity to rejection or failure Believing that they are unworthy, depressed teens become even more depressed with every supposed rejection or perceived lack of success.
Depressed teens are often irritable, taking out most of their anger on their family.
They may attack others by being critical, sarcastic, or abusive. They may feel they must reject their family before their family rejects them. Difficulty with relationships Teens may suddenly have no interest in maintaining friendships. They'll stop calling and visiting their friends. Frequent complaints of physical illnesses, such as headaches and stomachaches Teens may complain about lightheadedness or dizziness, being nauseous, and back pain.