Common pitfalls during UPSC preparation include poor time management, lack of consistency, and failure to understand the exam pattern thoroughly. Many aspirants underestimate the importance of revising frequently, leading to knowledge gaps. Another common mistake is focusing too much on optional subjects at the expense of general studies or current affairs. Additionally, relying solely on classroom teaching without active engagement, such as self-study or peer discussions, can hinder skill development. Staying motivated and maintaining a balanced approach, including rest and leisure, is essential to avoid burnout and ensure effective preparation.