This document is a student's journal submission for a course on social psychology and the natural and built environment. It contains 4 entries discussing psychological concepts learned in class applied to the student's personal experiences. The first entry describes how the student's stereotypes about smokers were challenged through interactions with smoker friends. The second entry explains how the student was conditioned to wake up to banging door sounds due to experiences at home. The third entry discusses cognitive dissonance the student feels between a love of cake and choosing healthier oatmeal. The fourth entry provides an example of sexism the student has observed in their mother's attitudes towards them and their brother.