Preparing for UPSC without multiple sources becomes easier when the syllabus defines your boundaries and PYQs define your depth. Instead of collecting new books and notes, focus on a limited set of standard resources and revise them multiple times.
Study each syllabus topic carefully, practice PYQs related to it, and connect current affairs to the same themes. This approach helps you build understanding without feeling the need to constantly add new material.
UPSC preparation improves more through revision and clarity than through increasing the number of sources.
