To rapidly improve your English proficiency in junior high school, follow these steps:

1. Consistent practice: Immerse yourself in English by reading books, watching movies, and listening to songs in English daily.

3. Grammar mastery: Review common grammar rules and practice them through writing exercises and online quizzes.

4. Speaking skills: Engage in conversations with native speakers or use language exchange platforms to practice speaking English.

6. Reflect and adjust: Regularly assess your progress and identify areas that need improvement. Adjust your learning strategies accordingly.

By following these tips, you can make significant progress in your English skills over time.