Considering characterization in my favorite novels, I have learned that someone maybe able to grow on fear, through determination. Leading them to likely be more emotional yet stronger depending on the situation. In "The Hunger Games" by Suzanne Collins. The main character Katniss does so many times. In the first book her fear, and determination to survive to save her sister Prim leads her to carry on even when it is easy to let go. Such as when she needed water, on the brink of dehydration. She went on thinking Haymitch must want her to, along with Prim needing her. Her determination leads her to finding water.
From this you can learn that even through the hardest times there maybe something. Not to give up to the fear. Instead grow on it. This is an important thing to have people admire, and have. It is part of being human. It is important to include in your story's, and in your life.