I feel like everyday brings us new challenges, even if we don't notice them. In fact it's often because we don't notice them that the same problems persist. This is basically the premise of Ryan Holiday's book The Obstacle is the Way. That the challenges in our life are really an opportunity. That by facing our fears and overcoming the biggest hurdles we grow and find success.
We can never truly find ourselves if we let fear guide us, if we let the challenges placed before us scare us away. Sometimes the challenge is a simple conversation with a stranger, sometimes it's leaving behind security to follow your dreams. But each challenge completed has prepared you for the next day's lessons. We just have to keep an eye out to see how we can progress.
“The impediment to action advances action. What stands in the way becomes the way.” - Marcus Aurelius