The biggest trick is to transform many of the things that you do everyday into a chance to practice English.
For example, change the language settings of your phone or some programs on your computer to English. iTunes and Chrome are both easy to change the language settings and are often used everyday.
Also, become addicted to English language TV shows and watch them in English. If you do need subtitles, try to put the subtitles in English.
These will not help you with speaking, obviously, but they will help you to think in English all day long.
Hope this helps!