I interviewed 21 self-made billionaires about their secrets to wealth and success-here's what I learned

Billionaires love setting aside alone time. .. To think. They might do this by meditating or some other relaxing activity they enjoy.

Many billionaires are avid readers of a wide range of topics from fiction and nonfiction.

Keep a priority list of titles based on your interests or recommendations from mentors — anything that will add value to your life. If you want to go the extra mile, mark interesting passages and write down notes, thoughts and ideas.

Billionaires maintain their health by exercising regularly. They also often practice meditation or stick to a nutritious diet.

Many incorporate their favorite sports into their workout regimen and claim that sports teach us about winning and losing, essential skills in business and life. 

Most billionaires wake-up around 5:30 a. m. Waking up early gives you more time to think in silence, work undisturbed and mentally prepare for the day.

It’s important to note that getting less sleep isn’t what makes you successful. The majority of billionaires function best after seven to eight hours of rest; they simply go to bed earlier.