We all learn differently. I only work well under pressure. I booked my first 4 exams a month in advance then I studied like crazy. Nothing motivates you quite like a deadline you've spent money on.
Start with the question bank(s) then (and only if you have time) read the books. I studied full time at home and found 1 week per subject worked very well for me. Rinse and repeat.
By full time I mean dawn to dusk. If I had given myself longer than a month I would not have worked as hard. Having a full time job and family will increase the time you need exponentially.