I presume you're learning under school?
If so, you must attend the 4 theory lessons, it's compulsory and
you must pass final evaluation for both theory and
practical..
The minimum time to complete the whole course before you can book
practical test is about 2 months, assuming you attend practical
lessons almost everyday and you're quite a fast learner, and your
theory everything must be cleared within 1 month. It also depends
alot on the availability of slots...
Lastly, the waiting period for the prac test is about 1 month,
subjective to individual school's schedule... You can check out the
schedule on each driving centre's website.
If you're asking for private learners, I ain't so sure
anymore.
There is no short cut at schools, everything is systematic and
structured.