I am struggling to choose between P4 and P5, I did well (76 and 92 respectively) for the foundation papers but don’t know which one to choose. I found F9 easier to understand and study than F5 although my exam results don’t reflect that.
What is P4 like in terms of written/numbers? I am far better at calculations and I am probably better taking the paper which is more calculation based (if any!!)
P4 certainly has much more calculations that P5, and so maybe it will be a better choice for you. It is a hard exam, but if you understood F9 properly then it should be OK. Have a look at a few past exams for both papers and see what you think.