Another reason for the increased self-centeredness of an adolescent is her susceptibility to humiliation. This brazen, defiant creature is also something tender, raw, thin-skinned, poignantly vulnerable. Her entire sense of personal worth can be shattered by a frown. An innocuous clarification of facts can be heard as a monumental criticism.
Adolescence: The Farewell to Childhood (ed. Touchstone Books, 1995) - ISBN: 9780684800622