1. Evaluate Your Performance:
- Start by analyzing your performance in the mock tests and practice papers. Identify the areas where you are struggling and the topics that require more attention.
- Look for patterns in your mistakes and try to understand the root causes behind them. This will help you identify the specific areas that need improvement.

2. Prioritize Weak Areas:
- Once you have identified your weak areas, prioritize them based on their importance and the level of improvement needed.
- Focus on topics that carry more weightage in the exam or those that you consistently perform poorly in. This will ensure that you allocate sufficient time and effort to improve in these areas.

3. Modify Study Plan:
- After identifying your weak areas, revise your study plan accordingly. Allocate more time to these topics and adjust your schedule to ensure sufficient practice and revision.
- Break down the topics into smaller subtopics and assign specific time slots for each one. This will help you track your progress and ensure that you cover all the necessary content.

4. Seek Additional Resources:
- If you are consistently struggling with certain topics, consider seeking additional resources such as textbooks, online lectures, or study materials from reliable sources like EduRev.
- Supplementing your existing study plan with these resources can provide you with a different perspective and help clarify any doubts or misconceptions you may have.

5. Take Regular Mock Tests:
- Incorporate regular mock tests into your study plan to gauge your progress and identify areas that still need improvement.
- Analyze your performance in these tests and compare it with your previous results. This will give you a clear picture of your progress and help you identify any recurring mistakes.

6. Review Feedback and Revise:
- After each mock test or practice paper, carefully review the feedback provided. Pay attention to the areas where you made mistakes or struggled.
- Use this feedback to revise your study plan and make necessary adjustments. Focus on the specific topics or concepts that you struggled with and allocate more time for revision and practice.

7. Repeat the Process:
- Continuously repeat this process of evaluating your performance, modifying your study plan, and seeking feedback from mock tests.
- Regularly reassess your weak areas and adjust your study plan accordingly. With each iteration, you will see improvement and progress towards your goal of mastering PSIR for the UPSC exam.