Don’t be afraid to make mistakes. Be confident. People can only correct your mistakes when they hear you make them.
Surround yourself in English. Put yourself in an all English speaking environment where you can learn passively. The best way to learn is through speaking.
Keep a notebook of new words you learn. Use them in sentences and try to say them at least 3 times when you speak.
Visit EC’s free learn English website at least once a day and complete a lesson.
Memorisation of lists is one of the most common ways of learning vocabulary for a test. It's only a good exercise for short term studying because you often do not retain the information that you have learned for a test.