We will always be miserable if we're doing things against our nature. We will always feel off if the requirements of our daily life don't match how we want and need to expend energy. And, when we find cycles of life that best match who we truly are, we can always show our our colors.
If you want to recognize your strengths, you need other people to hold up a mirror. When you see your reflection through the eyes of those who know you well, you can begin to identify your most unique talents.
I participated in my first 5K recently and, in doing so, learned more about myself than I expected. Most specifically, I learned that I don't like running -- but that won't prevent me from probably doing it again.