Step 1. Get something to represent each of your elements. For fire light a candle, for water a bowl or glass of water, for earth a jar of dirt, and for air turn on a fan.
Step 2. Start meditating. Close your eyes. Meditate for at least 5 minutes. While doing this, imagine each of the element's pictures: a raindrop, flames, air, and the earth. You will feel something while imagining your element.
Step 3. Once you finished meditating, open your eyes. Look at all the representatives of your elements. You will feel a connection or power with your element.
That's how to find out what your element is.