This question, which have confused so many people who failed to write a perfect essay , had ever frustrated me for a long time before I was aware of one method. The method is nothing more than the langrage output.

You have to persevere in writing or speaking what you have learned. Everyone almost know this ideal way, but nobody effectively put it reality according to one's English level.  Once one forcedly write something, he is likely to feel uncomfortable not only because of lack of confidence, but also due to the unprepared creation which possibly causes one’s sense of disgust in English. The Torment is facing these pathetic people, but it is not difficult to jump out the depth of misery.