In recent years, Olga Khazan had been spiraling toward an existential crisis. Though she treasured her loving, long-term relationship and her dream job, she often caught herself snatching dissatisfaction from the jaws of happiness. Her neurotic overachieving had always been a professional asset, but lately, Olga felt that her brittle disposition could shatter under the weight of just one more thing. She knew something had to give-but was it really possible to change her entire approach to life? In Me, But Better, Olga embarks on a year-long experiment to see if it's truly possible to change your personality, sample size: one. Scientifically, personality consists of five sliding-scale traits: extroversion (how sociable you are); conscientiousness (how self-disciplined and organized you are); agreeableness (how warm and empathetic you are); openness (how receptive you are to new ideas and activities); and neuroticism (how depressed or anxious you are). But research shows that you can