Both answers given already are a bit weird. First of all, music is a bad example of how a language really sounds. Artistic freedom allows for a lot of odd stuff. Just remember how in Chinese songs the lyrics lose their original tones. The same happens in English songs. (And Dutch songs. And as far as I know all western languages allow for this kind of freedom in songs.) It's best to watch movies and news bulletins and most importantly, use English as much as possible. Don't be embarassed to speak out loud and try to think in English as well. Tudor does make a valid point regarding vocabulary though. In order to become confident you need to be able to express yourself the way you want to. And doing so requires an extensive vocabulary. (And you can learn new words in any way you like. Radio/TV/songs/books/newspapers etc.)

Dear Jenny, STEP # 1: Read, read and read.. Build your word power/ vocabulary so that you don't run out of words when you talk. (Newspapers and magazines are the best source as you read more about real life situations which you could use in your daily life.)\ STEP # 2: Practice talking over the internet or if you can find some friends who can speak englisg (both Chinese or Foreigners)

Listen to as much English-language music as possible (in order to familiarize your brain with the cadence of hte language).

I think you should read books in English to improve your vocabulary and also talk to others in English.

Perhaps I can help you, text and voice