Do the practice test over and over until you get them all correct. There is also an iPhone app available.
After passing the test
Make use of the bonus hours with a driving school. 1 hour driving lesson = 3 hours in the Logbook. This can only be used for the first 10 hours with a driving school. This means you can get up to 30 bonus hours.*
Complete the Safer Drivers Course once you have reached 50 hours of actual driving to get a bonus 20 hours in your Logbook.*