Thanks mate ! I will have my 1A soon and it's my first time ! Excited yet nervous !
No problem, yeah I think if you have done all your homework you should be fine.
Hopefully you are walking in with some practice with either Skytest and/or Latestpilotjobs on the cut-e.
I'd say you need a least a very basic/preferably good understanding of the 5 chapters they tell you to read. For here they expect you to at least get 70% of the questions right out of 50 which means you need to pass at least 35 of them. Expect 2-3 questions that are not related to the book (i.e. what are the runways in HK airport). Just general pretty straight forward questions.
Good luck and do your best