Mark difficult areas on it such as one-way street, difficult intersections, speed limit of exam route, so that you are ready for them on approach, rather than having to deal with them as if they have come out of nowhere. Make sure you get plenty of practice with a professional driving school such as smart driving school.
That will leave you without any minor faults. That will leave you with margin of 15
faults for the rest of the drive on the day of your test.
Practice until you can drive without verbal or physical intervention from your instructor for the duration of a full driving lesson or a mock driving test. Don’t forget: its not practice that makes perfect: its practice – with a professional driving instructor – that make perfect.