should I take p4 once more or try p6 this time around?

Hi. I failed p4 in december 2013 on 47 , it was my first attempt on this paper, I have a decent grip on most topics except some valuation methods & few other topics and I find financial management very interesting aswell, but the daunting thing is that p4 pass rates this time were all time high, so there’s a decent chance that next time pass rates will again get lower and that’s what scares me! What do you guys think? Should I retake p4 or should I try p6 ?