No one really "has" an element, per say. All of us are a part of all the elements: the fire is our heat, the water is our blood, the earth is our body, and the air is our breath.
You can look up some ways to find your spirit animal, but I found mine simply by looking around me and observing the way animals act with me. Through astral projection, trance journeys, and meditation it is quite possible to meet your guide. You can also simply ask a spirit in nature to help you meet your spirit guide.
Hope I helped! Always willing to answer more specific questions as well.