According to my research, it is highly recommended that you take classes from a professional and experienced tutor for this, and of course other ACCA papers.
However, you can pass through self studying, if you use the appropriate materials/resources and attempt to gain a good understanding of the syllabus PLUS answer many questions, both from exam kits and online.
All the best (:
I passed F4 by self studying though i just breaked even (I've alzays had difficulties with law). Try to evaluate yourself to see your strenghts and weaknesses before making a decision. and if u do decide to go on alone practice a lot? it will be of great help.