16 for your L - One year period
After that one year period you get tested, book early, tests are booked like a full 3 months in advance.
Then you get your N, two year period.
All the while you only have 4 points to lose. Speeding is 3, driving without your L or N is 2. Etc.
If you get 4 points you have to start over, either the L or N period. It sucks.
Then you take another driving test to get your class 5 FULL.
3 Years MINIMUM to get your full licence. Most likely closer to 4 years with all the tests.