There are 2 paths ahead, One goes left, other goes right. If choose the right, Then left one is left. But if I choose the left, Then right one is left. I don't know whether, Left is right, Or right is right. All I can do is, Choose one path and walk it through, Whether it is left or whether it is right.
What if things don't go, The way you want them to ? Relate this to a tree. If a tree doesn't get water easily, What does it do ? It's roots grow deeper and deeper, Until it finally reaches its purpose. Not only does it seek it's purpose, But it also becomes stronger than ever, In the ongoing process.
Similarly, things that seem to challenge you, Are the ones which will make you stronger.