hit the SWA and SY first as these take a while, don't forget to bridge the data over the 230v cables, don't be too worried about the heating system as this is just wiring by number but take your time because one mistake will send your head spinning especially when there is a time deadline, use your own tools, snips etc, make sure you know your 10 step safe isolation procedure, Too many people fail on this and pass the rest, installation is pretty straight forward, ensure your glands are tightened properly, ( not teaching you to suck eggs). On the DOL starter make sure you calculate your overload and tell the examiner. On,online exam is pretty straight forward, testing is ok just do as you've been taught, fault finding is simple on the generic circuits but will require more time on the heating systems, let us know how you get on, good luck, Liam .
and take 10 minutes reading through spec. I almost failed because I wired the ring final CPC in 2.5 and not 1.5. Realised and sorted it, could have cost me £350 lol