Hello, Hiếu. I think it's great that you'd like to improve your English-speaking skills. Knowing multiple languages makes you more marketable in a globalized economy. I'd be happy to help you learn English by answering your questions, having discussions, and sharing resources with you to improve your grasp of the English language. Send me a message with more information about your understanding of English, reasons you want to learn the language, and ways I can help. Thank you, Michael

Taking lessons with a paid teacher is your best road to success.