Approved reading material
One thing I learned about success is that "all successful people read" but the key to this principle is "what are you reading". You have to read those things that will help improve your life.
As you evaluate your current life situation based off the things you value as important in your life, you have to read books, articles and watch videos based on those topics. This will allow you the opportunity to grow your life in those areas.
After reading the books and listening to audios and watching videos you have to discipline yourself to apply the material you learned into your daily life. Knowledge isn't power, the use of knowledge is when you truly have the power.