First of all, you need some grammar too, because I noticed typical Asian mistakes, or non native constructions anyway.
Anonymousi'm live in PRC <-- I live in...
Here's the best tips I can give you:
1 - Get a grammar book, and read it, learning the most common structures. "English grammar in use" by Cambridge University Press seems a good one.
2 - Learn how to recognize the sounds of vowels and how to speak like a native speaker. I used "American Accent Training", by Ann Cook. It is one of the best.
3 - Practice, replacing your first language with English every time you feel like it. You should start to think in English.
Point #2 is the most important. I improved my listening skills by at least 50% (from understanding 25% to understanding 80%). The link is http://www.americanaccent.com/ ,if you want to take a look.