Nobody can be sure of a perfect way around and there's no sure shot strategy to score a 7 or 7.5. It's like whoever touches that ceiling comes up with their own strategy which they felt might have worked even if they were unsure of their writing performance while coming out of the exam hall.I know most of you here are struggling to get past the magic number 7 for writing. Perhaps you haven't realized that you are following wrong advises and guides.
I have followed famous IELTS websites like IELTS Liz, E2 English, Makkar and a whole bunch of other videos and website. One thing I now know is that they all are teaching the wrong method to approach writing. Just to give you an example, if you think there are 5 or 7 types of essay, the reality is there is just one type.
There is a free e-book called "IELTS TEACHER – THE KEY TO IELTS SUCCESS" written by Pauline Cullen and available for download on her website IELTS Weekly. She is from Cambridge and the same person who wrote the Cambridge Official guide to IELTS.
Trust me, it is highly worth your time and you will be surprised to learn how many misconceptions and wrong methods you have got which makes you stuck at band 6.5.
Why I'm saying that? well, I scored 7.5 in writing(Yes, a 7.5!) when I sat for my first attempt and I didn't even know who Liz and Jay were. I didn't follow any specific strategy and wrote what came into my mind but used examplea and some good vocabulary. That time, I got a 7.5 in L so had to go through another attempt quite recently. What was different this time? A 6.5 in writing but a perfect score in all other modules and you won't believe me, I followed one of the tutor in a rote learner style but still got a damned 6.5 and I'm still unsure what went wrong so a Eor is currently in progress.