Unpleasant things can happen at any moment, it is how one chooses to handle it that makes all the difference.
Sometimes an inspirational quote is enough to pull you through. Other times, all you can really do is put one foot in front of the other. When a greater challenge arises, think of it as an opportunity to learn and become more of who you are meant to be. Make a plan, know what you believe in, be grateful for what you have, confide in someone you trust, exercise, stay healthy and read a great book. It may take a while, but eventually you wake up one morning with a new calm. And when that happens, new ideas begin to form in your mind and you begin to see it in a new way.
Obstacles can arise at any moment, and regardless of their significance, they challenge you to take a deeper breath and look for ways to get through and at the end you find a better, stronger, healthier you. You can have a fresh start at any moment you choose, because failure is not determined by the falling down, but the staying down.