Sir, I am not sure whether it is a suitable forum to place this question, but can you please advice me which would be better, watching your lectures second time or concentrating on doing past papers, reading examiner answers and reports?
They are all worth doing, but most important of all is question practice.
Certainly attempt all of the past papers on the ACCA website, but also make sure you buy a Revision Kit from one of the ACCA approved publishers (because they have lots of exam standard questions to practice on – and MCQ practice in particular is so important).