I passed last Wednesday with 6 faults, I took a shunt that I didn’t need to take apparently.
I prefer driving the +E but I was nervous during the test and I wasn’t nervous during my Cat C.
I’ve passed everything first time apart from my Mod 4. 
Congrats pal, you’re almost out on the road, the hard part is done! 
Congratulations!!! The hard part is all done…
As for the CPC there is a link above that has a video and the 20 questions you are asked… Study them until you know then off by heart and you will be fine.
Almost there…