1. Make a study plan: within three months, you need to make a detailed study plan, including the subjects and topics to be studied every day, the number of exercises to be done every week, and the goals to be completed every month. This will help you stay organized and disciplined, and ensure that you finish the task within the specified time.

2. Pay attention to basic knowledge: Mathematics is a discipline gradually established, so it is important to ensure that you have mastered the necessary basic knowledge. If you are confused or don't understand a topic, please don't hesitate to ask your teacher or classmates for help.

3. Do more exercises: Mathematics is a subject that needs constant practice. By doing more exercises, you can better understand concepts and methods and improve your skills. I suggest you choose a workbook or online resources that suits you, and conduct mock exams regularly to test your progress.

4. Ask for help: If you find that you can't complete some tasks or topics independently, you can consider asking for help from your math teacher or parents. They can provide you with extra guidance and support to help you overcome difficulties and achieve better results.

5. Use Internet resources: There are many free mathematics education resources on the Internet, such as video tutorials, online exercises and forums. You can use these resources to strengthen your study and understanding.

6. Perseverance: Last but not least, study persistently. Although it may take some time and effort to improve your math scores, you will certainly make progress as long as you keep a positive attitude and focus.