When your spell is formed in your head, write the steps, ingredients, and incantation(if one) down on a piece of paper. A pencil is highly unrecommended for spell-making.
Then fold it a few times. Hold it in your hand. Then picture the energy of nature seeping from the ground. Picture it swirling around your body, from your feet to your shoulders, to your arms, to your hands, to the paper. Imagine the energy flowing into the ink itself.
Then picture the energy from the air/the cosmos, swirling down to your feet. Picture it flow like before.
Note: You may feel your hands react during the process. This is normal, and shows that the ritual is working. If you don't feel it, rest for a day and then try again. Repeat until it either works or you give up.