孟子曰："舜发于畎亩之中，傅说举于版筑之间，胶鬲举于鱼盐之中，管夷吾举于士，孙叔敖举于海，百里奚举于市。

Mencius said: Shun was grown up by farming...so all these guys were born  in a poor/practical situation that made them tough!

故天将降大任于是人也，必先苦其心志，劳其筋骨，饿其体肤，空伐其身行，行弗乱其所为，所以动心忍性，曾益其所不能。

Therefore, it seems  that God likes to make a major mission to land to someone whose will has to be honed, and whose muscles has to be tired;whose body has to be starved. In short, who has to suffer a lot of  poverty, hard working etc . so all of these hard things may actually inspire someone's aspirations, solidfy his tough temperament, and increase  his talents.

人恒过，然后能改。困于心，衡于虑，而后作。徵于色，发于声，而后喻。入则无法家拂士，出则无敌国外患者，国恒亡。然后知生于忧患难与共，而死于安乐也。"

Remember: No one made no mistakes, and all the mistakes could eventually be corrected. Confusions in the heart, make you wondering always, and try to work them out always! you felt  the hardness, and you may say them out, and you may get helps for  them.

Be sure that life cannot stay with worry and difficulty, however death can stay  with happiness?