I did my CB a few years ago, (expired now), and it was a 3 day course with a 1 day refresher after 3 years.
After day 1 it was all a bit boring really, but just keep your head down, do exactly what they say and to repeat others, DON'T FORGET YOUR HANDBRAKE!
Also ditto all the other things like 3 points of contact, look where you're going, take the key out etc, etc, etc.
Also, if your training in racking don't let your masts touch the racking as you'll lose points for that on your test.
If you are off line when going into racking it's better to take your medicine and do a shunt to get get back on track, it's better to drop one point than make a worse mistake and possibly loose more.
Relax, enjoy and you'll fly though the test at the end of the week
