Candidates can effectively document their learning progress by maintaining a structured learning journal or portfolio. This involves setting specific goals, tracking milestones, and reflecting on their understanding of various subjects. Regularly updating notes, summarizing topics, and recording challenges faced during their studies are essential practices. Utilizing effective checklists or digital tools can help visualize growth and identify areas needing focus. Additionally, self-assessment quizzes and peer discussions can provide insights into their readiness, ensuring candidates are well-prepared for exams like the UPSC.