I did not have it at your age. I had the opposite: I would go to bed in a dark and hopeless mood because of the circumstances (such as my parents' divorce) and wake up extremely happy and relaxed, and then after a few seconds I would remember my unhappiness and what made me hopeless the night before. My mother used to tell me that it is "biological optimism" which is a feature of all healthy youths. I do not know... I went on to develop MI.