Sorry to hear that. You're going to have to change up your strategy because what you did before didn't work for you.
Of course, there are psychological elements -- first read these tips:
https://www.gmatpill.com/about/studying- ... trategies/You'll want to really focus in on your weak subsections and dedicate multiple days to them before moving onto the next subsection. Your aim should be to reach your target score with
online practice tests such as this one -- before walking into the actual exam.
But first you will need to build your confidence step by step -- and that involves doing one section at a time. You may find our
online platform useful for doing training exercises -- but at the 540 level, you will need extra help.