This happens so often I'm just going to copy and paste what I've said most recently:
From a Western standpoint, there are only four elements - earth, air, wind, and fire. The "fifth" element is a relatively new addition that is otherwise encompassed within the idea that Divinity (or the spirit) unites the four, which in turn describe the physical world.
In terms of exploring what "your" element is, I generally say that there isn't much point. Your element is that element to which you feel the deepest affinity to. If there are multiple elements you feel closer to, more the better. After all, you will rarely find a single element existing by itself in nature.
Fire requires air and earth (fuel) to burn. From a magical stand point, it represents purity, warmth, passion, and virtue. Fire, within traditional occult practice, represents life giving warmth and the purity of the spirit.
Water most frequently contains salt, or a variety of other mineral deposits as well as various gasses that help it sustain life, and from an alchemy/western occult point of view it is the glue that holds all things together.
Earth, from an occult stand point, is what gives substance to all things. It gives us balance and stability, and with earth we can ground ourselves, and in shaping earth our thoughts and ideas gain substance (literally building, not magical creation mind you).
Air is ephemeral. Hard to grasp, ever changing, elusive, it represents thoughts, dreams, and the imagination. We can look to air for inspiration and whim.
In exploring each element, how we connect to it, and in turn seeking to grasp it more fully (through various traditional rituals, meditative contemplation, etc) we can find balance, harmony, and deeper understanding of the world around us and within us. Through this we gain spiritual insights and enlightenment concerning our existence within the physical.
Begin with the one that is most comfortable to you, or "your" element, and then move on through the rest.