This document discusses psychosexual development and the factors that influence it. It outlines the typical stages of development from childhood through adulthood, including the sexual unawareness stage from birth to 1 year old, the sexual awakening stage from 3-7 years old, and the sexual preoccupation stage of adolescence from 13-20 years old. It notes that healthy psychosexual development does not occur in a vacuum and is influenced by predisposing factors like pregnancy/birth experience, temperament, attachment styles, and family competence/attitudes. The document also describes potential "modes of psychosexual fixation" where development is arrested at a stage, such as fixation in childhood resulting in feelings of inadequacy and perceiving relationships as threatening.