Each of us are special in our own unique way. We were all put on the Earth--in this time and space--to make certain contributions to the human experience.
Many of us have experienced some things that have us asking ourselves "why is this happening to me?" We question why we have to endure certain things in our lives but I strongly believe the universe knows who we are destined to be and uses our life experiences (and sometimes the experiences of those close to us) to shape us and guide us to our destiny. The key is to shed the "victim" mentality, stay open and positive and express your gratitude (daily) for your experiences. This will lead you to the happiness and self-fulfillment you are seeking.