The questions in the confuser are very similar in style - make sure you read them properly before answering - make sure you know what it's asking!
Here's what I did - I read the book (whichever you chose to use) and completed the questions section at the end of each chapter as I went along. These aren't always similar to those in the exam but still get you thinking. Only when I had finished this and completed and understood the questions and answers did I go on to the confuser.
Might not work for everyone but I found it a really good way of retaining the knowledge. At the end of the day you need to understand it to apply it.
Best of luck!
