If you want to know how many points you have used/left, get a driver report (costs $7.20):
https://www5a.maxi.com.au/epp/vrd/onlinepayment.asp#
According to my calculations I was left with one point near the end of my Ps but when I checked my record I had only lost 7, and not the 11 that I thought I did (back in the 12-point days). Don't know why this was the case, maybe they got lost, maybe points aren't always deducted but it was missing two of my fines - and this is coming from Vicroads database.
-Greg.