One of the biggest mistakes in UPSC prep is trying to cover too many resources. Many aspirants keep switching between books, coaching materials, and online sources. Instead of adding more material, focus on revising a limited set of reliable sources multiple times.

Another habit to stop is passive studying. Simply reading or highlighting without writing answers or solving PYQs does not build exam readiness. UPSC preparation demands active engagement through answer writing, test practice, and analysis.
You should also stop ignoring revision. Studying new topics continuously without revisiting old ones leads to weak retention. Regular revision helps consolidate knowledge and improves recall during the exam.
Finally, avoid comparing your preparation constantly with others. Every aspirant’s journey is different. Focus on your own progress, improve your weak areas, and maintain consistency in your preparation.