Yes – this forum (and the F3 Ask the Tutor Forum) are where to ask for things you are not clear about.
I assume that you have watched my free lectures? They are complete free courses for F2 and F3 and cover everything needed to be able to pass the exams well.
I assume also that you have Revision Kits from an ACCA approved publisher. They are full of exam standard questions for practice and practice is vital to passing the exam.