If your English grades in junior high school are not good, don't worry. Here are some suggestions to help you improve:

1. Review basic vocabulary and grammar: Make sure you understand the basics of English, such as common words, phrases, and sentence structures. Keep a dictionary or phrasebook handy for reference.

3. Read English materials: Reading English books, articles, or even comics can help you familiarize yourself with the language and improve your reading comprehension.

4. Listen and imitate: Listen to English audio materials like podcasts, songs, or movies, and try to imitate the pronunciation and intonation to improve your listening and speaking skills.

6. Seek help: Don't be afraid to ask questions in class or seek extra help from your teacher or tutor if you need it.

Remember, improving English skills takes time and practice. Stay consistent and dedicated, and your grades will gradually improve.