I would recommend using up-to date material/s, as it is best not to second guess on any of your examination paper. Do also refer to ‘examiners reports’ for whichever paper you are planning on sitting and do attempt as may practice questions..at least a minimum of 5x per question. It’ a technique I’m currently using after I failed F4 (3x, F1 (2x)and then passed very paper F5 on first attempt. Be patient and selfish with your time when studying butdo have fun. Good luck with all your exams.