It's not always easy to see the good when trial and misfortune arise, especially in the moment. But in those periods of turmoil I try to think of the lesson to be learned, the opportunity for growth. For me, my struggles have almost always led to a deeper understanding of myself and of a strength I didn't realize I had.
Our struggles and how we perceive them add to our character and enhance the best parts of who we are. My advice is to try to see struggles as opportunities and be grateful for those opportunities. Gratitude equals happiness.