Hi,
I started my PPL when I was 22 and it took 15 months. I essentially did it in three intensive periods of 2-3 weeks. My big issue was finding time, so it was done in holidays, with the final stage staying in a B&B at the airport to get as much flying in as possible. I finished at 48 hours, and found that doing it in intensive batches was best. On the second and third intensive period, the first hour or so was getting familiar with the aircraft again and then it was all uphill from there!
Good luck.