Yes, there are several strategies that can help you effectively attempt previous years' papers for Commerce. Here are some tips:

1. Start with a plan: Create a study schedule to allocate time for solving previous years' papers. Set aside dedicated time slots to attempt papers, preferably in exam-like conditions.

2. Understand the exam pattern: Familiarize yourself with the exam pattern, marking scheme, and the types of questions asked in the previous years' papers. This will help you structure your preparation accordingly.

3. Solve papers under timed conditions: Attempt the papers within the time limit to simulate the exam environment. This will help you manage your time effectively during the actual exam.

4. Analyze your performance: After solving each paper, review your answers and identify areas of strength and weakness. Analyze the mistakes you made and understand the concepts or topics that need more attention.

5. Focus on weak areas: Once you have identified your weak areas, allocate more time to study and revise those topics. Use additional resources like textbooks, online tutorials, or reference materials to gain a better understanding.

6. Seek help if needed: If you are facing difficulty in understanding certain concepts or topics, don't hesitate to seek help from your teachers, classmates, or online forums. Clarifying your doubts will improve your understanding and performance.

7. Practice selective revision: While attempting previous years' papers, you may come across questions that are frequently repeated or similar in nature. Make note of these questions and revise the corresponding topics more extensively.

8. Practice time management: During the exam, time management is crucial. Practice solving previous years' papers with a timer to improve your speed and accuracy.

9. Maintain a positive mindset: Stay motivated and maintain a positive attitude throughout your preparation. Believe in your abilities and trust your hard work.

10. Mock exams: In addition to solving previous years' papers, consider taking mock exams to simulate the real exam experience. This will help you assess your overall preparation and identify any gaps that need to be addressed.

Remember, attempting previous years' papers is just one aspect of your preparation. It should be supplemented with regular study, revision, and practice to achieve better results.