1. Obsession
The first and most important thing you need to achieve this goal is incredible passion. You must have tremendous emotional power to learn super-fast. Why? Because you must study English 8-14 hours a day and every hour you must be alert, interested, and energetic. To improve that quickly, you must build emotion. You must be obsessed with English. You must be passionate and incredibly enthusiastic. Remember, Emotion is 80% of success, method is only 20%.
To create passion, you need very compelling reasons to learn English. Just doing well on a test is not a strong enough reason. Just getting a new job is not a strong enough reason. You need HUGE reasons for doing this. Imagine all the incredible benefits you will have as a fluent English speaker. Imagine how your life will change 5 years from now. 10 years from now. 20 years from now. If you are motivated by money, imagine how English will make you amazingly rich. Visualize your dream house, your dream car, your dream life.
If love motivates you, imagine how English will help you meet incredible people from other countries. Imagine dating beautiful/handsome foreigners! Imagine incredible love and passion, possible because you are a fluent English speaker. You can also exaggerate the terrible things that will happen if you fail to speak English fluently. Imagine all the jobs you will miss. Imagine all the people you will never meet. Imagine how bad your life will be because you cannot speak English. Make your reasons bigger! Bigger reasons = Bigger Passion. Bigger Passion = Bigger Success. Emotions is the key. Make your emotion stronger!