I hope you're joking...
Can you fail? Not that I'm aware of, you'll get a minor though.
What do you take? Theory test pass certificate and driving licence.
Tips? Non really.
Yes, you should be using your parking brake on hills anyway, sitting on the biting point can burn the clutch. If you've been taught to sit on the biting point then get a different instructor if you fail your test. I hope for your sake that you've been taught properly.
It might also be worth telling us what other things you've been taught to do (how to set off, how to secure the car, , how to brake in an emergency,ect...).