I was so nervous for my tests as well. I have my full G now, and thank god its a relief. I did mine when I had strepthroat ( I didnt know it at the time). Anyways...
1. find someone who already took the test, and practice with them. Ask them to take you exactly where they had to do their driving, and just practice there a lot.
2. Practice stuff that you have difficulties on. I had problems with parallel parking, so I drove out every night for 2 weeks to practice ( I really sucked), and once I did it on the test, I nailed it.
3. Clean all windows, and all crap in your car so it doesnt distract you and you can visibly see everything.
4. Before the actual test, go out with your friend again, and practice an hour or so just to get it fresh practice. And you have someone for support for before and after the test.
5. Back into a parking space, so you dont have to worry bout backing out (and he wont see you back in so you dont have to be a pro at it),
6. park away from other drivers if you can so you wont have to worry bout other people parked crappy beside you.
7. Always check all your blindspots and mirrors. You should check, I believe, every 10 seconds.. Check your book, but I think thats what it is.
8. Know each areas speed limit, never exceed, never go below.
9. Avg time you should spend at a stop sign ~5 sec.
10. Hands at 10 and 2, none lower than 9 and 3.
11. Keep your eye out for Jay walkers. My friend failed cause someone ran past him, and almost got hit. It was rightfully the pedestrians fault, but nonetheless...
Well, thats bout all I remember, thank god I dont have to do that anymore, Id rather pay 50$ every 5 years, than do that again. Good luck on your test, and tell us all about it!
[edit] Is it true that people in BC have to have a huge green N on their cars when theyre driving if theyre new drivers????