The adolescent years are difficult, both for the teen and the parent! It is very similar to the "terrible twos" in that the teen struggles with issues of independence and wanting to continue to be parented. Combine this conflict with unstable hormones and you will experience some of the same outbursts of temper as you saw in your two-year-old. Some of the emotional tasks an adolescent is faced with include:
-- Accepting one's physique and sexual role,
-- Establishing peer relationships with both sexes,
-- Achieving emotional independence from parents,
Be assured that the disagreements and differences between parent and child are a necessary for healthy emotional growth. One of the best books for understanding emotional development is Emotional Intelligence.