Psychological factors like stress, anxiety, and self-doubt can negatively affect UPSC exam performance. A high level of competition can induce pressure, leading to performance anxiety on exam day. Additionally, the fear of failure may result in over-preparation or burnout, hampering effective study. Developing a strong mindset, embracing a positive approach, and engaging in stress-reduction techniques like mindfulness and exercise can aid candidates in maintaining focus and calm during their preparation and examination periods.