If your high school English is not good, don't worry! There are several steps you can take to improve your English skills:

1. **Build a solid foundation**: Focus on mastering the basics - grammar, vocabulary, and pronunciation. Use resources like textbooks, online courses, or apps to practice regularly.

3. **Practice writing**: Write daily to apply what you've learned. Keep a journal, write short stories, or respond to reading materials. Seek feedback from teachers or peers for improvement.

4. **Listen and speak**: Immerse yourself in English-speaking environments. Listen to podcasts, watch movies with subtitles, join language exchange groups, or participate in debates and presentations to practice speaking.

Remember, improving your English takes time and consistency. Stay patient and dedicated, and your skills will gradually improve.