Anyone else struggling with F9??

Hi people.
F9 is my last F paper and up to now I think this is the hardest by far.
Its not that I havent put effort in – Ive studied hard since beginning of August 4-5 nights per week, but nothing seems to be sticking.
Ive started doing exam practice questions but when I check against the answer Im a million miles away! 🙁
The only “strong” subject I seem to have grasped is NPV/Investment appraisal.
Could it be that its because I am working in Audit & Accounst Practice?
Any help or suggestions welcome.

Not looking forward to next Friday :((

Best of luck