I live in BC, so assumably our tests are quite similar. I failed my "N" test three times.
What I realized later on, when I finally passed is that I really was NOT ready to be driving on my own. Are you comfortable driving on a day to day basis? Can you hold a conversation while driving without feeling nervous about what's going on on the road?
I don't mean to scare you or anything, and I hope you do pass. Just remember that if you fail it is not a big deal - just means you need to log more hours on the road and get more comfortable with driving - it should be second nature, you shouldn't have to actively think about what you are doing while you are driving. Not saying you shouldn't pay attention of course!
After having my "N" for the mandatory two years I took my full license test and passed with 100% accuracy.
Good luck!! I know how nerve wracking it can be!