To improve your English as a middle school student, start by identifying your weak areas. Focus on improving your vocabulary, grammar, and pronunciation. Use flashcards or an app to memorize new words daily. Practice grammar by doing exercises from textbooks or online resources. Watch English movies and listen to English songs to improve your listening skills and pick up natural pronunciation. Don't be afraid to make mistakes; practice makes perfect. Join an English club or find a language exchange partner to practice speaking. Keep at it, and your English will gradually improve.