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

1. Review basic grammar and vocabulary: Focus on the fundamentals such as verb tenses, subject-verb agreement, and common phrases. Use flashcards or language learning apps to practice regularly.

3. Practice speaking: Find a language exchange partner or join an English club to practice conversational skills. If possible, try to speak English as much as possible in daily life.

4. Keep a journal in English: Writing daily can help you consolidate what you've learned and improve your writing skills.

6. Set goals and track progress: Create a study plan with specific goals, such as mastering a new grammar concept each week. Track your progress to stay motivated and celebrate your achievements.

By following these tips, you can gradually improve your English proficiency and catch up in junior high school.