I believe that getting the PPL is the easy bit, although it probably doesn't seem like it at the time! When you are training, there is a goal to aim at and you are mentally committed to spending the money, doing the studying etc.
Once you have the licence, the only thing making you go flying is ....you. And there are an awful lot of other things that need doing and prevent you from flying. I try to go one hour a month, but even that can be difficult, when the weather, the aircraft and the money do not coincide.
My advice to any brand new PPL is to think what you intend to be doing in 50 hours time, and then start saving for a share in your own aircraft.