Learn in the way that suits you - it isn't a competition.
It's a good idea to have a 'plan, but you won't really know until you start.
If you find you get over-loaded/tired then have lessons less frequently, if you have the time and can absorb the information then fly more frequently.
I would agree that most people I know have taken one or 2 years to get a PPL, but some have done it faster - especially if they have more time and are young.