In a society that if full of infinite opportunities to distract yourself like watching TV, spending time on social Media, playing video games and going out partying all the time it’s easy to loose track of the things that are really important to your success and well-being.
When you do personal development, especially when you start it, there will be a long period of time where nothing happens. You won't experience any big changes in your external world. You will have some shifts in your external world, but they will be small. This phase can be one to two years.