Not long ago, I was evaluating my performance so far in life. I'm a competitive person, but I usually have sense enough to compete against myself by topping past goals and checking off to-do lists.
Then I read John 21:20. Peter asked Jesus what John would do, and Jesus replied, "If I will that he tarry till I come, what is that to thee? follow thou me." God has given us all very different callings in life. If I were successful in the same things as some of the people I know, chances are I would be miserable. What works for others in many (most!) cases isn't exactly my cup of tea!
The morning after my ponderings, I woke up to Psalm 84:11, "The Lord God is a sun and shield: the Lord will give grace and glory: no good thing will he withhold from them that walk uprightly."
God never deprives His children of good things. They are there for us; we just need to boldly claim them as our own, while keeping in mind that happiness and success for us may come by a totally different means than it does for others.
While others may inspire, don't look to them as paradigms of success to be unduly admired or imitated. Look to Jesus, the Author and Finisher of our faith. Mother Theresa once said, "God does not call us to be successful, but to be faithful." If we are faithful to God and to the work He gives us, we are successful.