You don't really belong to an element. This is a common missperception.
The Zodiac signs tend to be given elemental significance, as their spiritual aspect often has a traditional quality comparable to the traditional aspects of a specific element.
You are not one element, but the four. Earth, air, fire, and water, with spirit, or the divine, sometimes considered a fifth element.
Which one you feel closest too is the place to start if you wish to explore the elements, providing you with familiar ground to start with as you acquaint yourself with the nature of the elements. From there, you explore each in turn until you develop a familiarity and understanding.
Eliphas Levi writes more about the elements, and their conjuration, here: