Well the best way to learn English would be to move to another country where the native language is English. Another way may be to find a "special someone" whose first language is English if any of those are available to you. Create an English environment where you can practice English. When you watch a movie, don't just watch it for the fun of it, grab a piece of paper and a pen and write phrases and words. Practice them, memorize them, and use them often. Program your mind so before you say something, think about what you are going to say in English and then say it. People might think you are crazy, but it's worth it. Get in chat sessions where you can hear and talk to a native English speaker. The most important thing is not to quit. You can do it.

A couple of years ago, I went to China and went to a school where they taught English to students. I agree with you completely, most of the Chinese teacher had poor pronunciation of the English Language. With all types of ways to learn, I think Television is great, and listening to a radio on the internet. Podcast are excellent too! Give me your skype name in a private message, I would like to help you with your English.