One of the simplest ways to connect with the element of fire may be right outside your door. After all, the sun is actually a big ball of fire, the essence of the element. ( Be careful how you worship it, though, since you can easily get burned.)
The sun supports all life on this planet, just as earth does. Without it, there would be no food. It also cheers us up, gives us warmth and light, and provides much needed Vitamin D that we absorb through our skin like the gift that it is.
More than that, though, the energy of the sun, viewed magically, is a source for power and inspiration. We observe its waxing and waning much as we do the moon (for instance, at the Solstices and equinoxes), and there are many gods associated specifically with the sun.
TRY THIS: For a simple exercise to connect with the element of fire, go outside on a sunny day. Stand with your eyes closed and feel the warmth on your skin. See the light through your closed lids. let the warmth and light enfold you like a hug, and send your gratitude out into the sun above. Find a sun god you connect with and open yourself up to his presence.