Speaking: I scored band 8 in this section. The speaking test was just a sort of usual conversation for me. I had practiced speaking on some suggested topics for a few times in front of mirror.
The thing to remember wjhile during your Speaking test is to agree or disagree with the assessor.
That is, even if you do not agree with them on some point, present your own views politely and acknowledge their point of view as well. Never be too defensive or strong in your speech. Take it lightly.
Finally, the thing about IELTS is that if you are calm and focused during the test, you will do your best.