Everyone asks "how can I learn English?" It's not as hard as it seems. There are many signs and clothing with English written on them as well as many self-study programs. Yet, the easiest way to learn is to first want to learn. No one can learn for you. Listening to English music and watching movies in English, without the subtitles, can help your hearing. Making friends with English speakers and trying to speak, don't worry about mistakes. At first you will make mistakes just as I still make many mistakes in Japanese. The more you try, the easier it will be. Also, reading English books and magazines will help improve your sentence structure and increase your vocabulary.
Give it your all and you will see your ability blossom!!