 Are you consistently getting the score you need in practice under exam conditions? So you get, let's say, at least three practice tests. Do them under exam conditions and DIY, do it yourself. You can check your scores so if you need a seven and you are consistently getting a seven or above in listening and reading, you're ready for the test. If you're not, you're not ready and you need to fix those little things that will get you up to the score that you need.