Candidates can assess their studies effectively through various methods like self-quizzing, concept maps, and mock tests. Taking timed mock exams simulates the actual UPSC exam conditions, allowing aspirants to gauge their readiness and identify weak areas. Additionally, maintaining a study journal can help track progress and reflect on learning. Analyzing previous question papers is also beneficial for understanding the exam pattern. Regular feedback from mentors or study groups enhances self-evaluation and aids in refining study strategies, ultimately leading to better preparation.