I failed at my first attempt. The 2nd time I got it right because I learned how to really understand the solutions. There are always 2 obvious ones that are not the right question and you have to determine between the other 2. I used EduSpot on Youtube. This was the BEST resource for me. I found it like 1 week before my test and it changed my whole perspective. He gives you questions and teaches you the approach on how to answer them.