Aspirants should cultivate essential habits early in their UPSC preparation, such as developing a consistent study schedule and setting clear goals. Time management is critical, allowing candidates to allocate adequate focus to each subject. Regular revision helps solidify knowledge and reinforces learning. Additionally, aspirants must practice writing answers to enhance their analytical skills and presentation. Building a habit of reading newspapers daily also keeps them updated on current affairs, which is vital for interviews. Lastly, engaging in discussions with peers can provide diverse insights and enhance understanding of complex topics.