It's not difficult to answer this question. English is very important because many students learn it at school. Don't think English is one of their subjects! It's one of the most popular languages in the present time. Many adults ought to learn English because it's useful for their work. Sometimes you read books, watch movies in English, you can't understand, or when your friends or relatives want you to translate a short text from English to Vietnamese, you translate it but it's inaccurate or awkward. Are you embarrassed? Do you regret taking English lightly? Do you admire students who study abroad? Do you want to be like them? So why don't you take some time to learn English. I would like to repeat again that English is very important. You should pay more attention to your English learning. Good luck!