I took some psychology classes in college and grad school. I studied "perceptual psychology." We sense light and dark areas on the retina of the eye, yet perceive a three-dimensional world of stable, solid objects. Perceptual psychology studies how this happens. I don't know anything about personality or the subconscious or hypnotism or behavior modification.

I know about psychology that if you read books of psychology you can treat your problems or improve your personality .