To improve your English in junior high school, start by focusing on the basics: vocabulary, grammar, and pronunciation. Use flashcards to memorize new words daily, practice sentence structures with grammar books or online resources, and watch English videos to improve your pronunciation and listening skills.

Read English books, newspapers, or articles to immerse yourself in the language and understand context better. Writing practice is essential; keep a journal in English or write short essays regularly. Don't forget to speak! Find an English-speaking partner or join an English club to practice speaking and listening skills.