Self-assessment is crucial for UPSC aspirants as it facilitates a continuous evaluation of progress and identifies areas needing improvement. Regularly testing knowledge through practice papers helps in gauging strengths and weaknesses, allowing for focused study. This process also aids in refining strategies, ensuring that preparation aligns with the requirements of the UPSC syllabus. Additionally, fostering a habit of self-reflection encourages candidates to adapt to their learning styles while building confidence in their abilities. Ultimately, self-assessment is key to effective time management and informed decision-making during preparation.