Did mine last week, it's challenging but necessarily so. There are lots of mock papers out there and a couple of helpful YouTube bits to help navigate the book and work out formulas.
As soon a you work out what questions relate to what chapters it narrows down the searching alot I found, ie generally questions 1-4 are chapter one, 5 & 6 chapter two (definitions) and 7-12 chapter 3. That is 12 of the 60 questions in the first couple of dozen pages.
As already stated though specific questions would be helpful.