John D. Rockefeller once recalled that “for years on end I never had a solid night’s sleep, worrying about how it was to come out.… I tossed about in bed night after night worrying over the outcome.”

This was coming from one of the most successful entrepreneurs of his time. Rockefeller was the founder of Standard Oil, the man who built the first true oil empire in the United States. At one point he was the richest man in the world and became the country’s first billionaire. His name is still synonymous with wealth and industry.

He believed that all the anxiety wasn’t worth it. “All the fortune that I have made has not served to compensate for the anxiety of that period,” Rockefeller said about his time of excessive worry.

You will never get back the time you spend worrying, beating yourself up, and walking around with a depressed state of mind. When you face hardship in life, it’s easy to get down and think, “Why me? Why can’t life be easy for once?”