Good luck, Stephanie! 
I’m looking forward to seeing what your creative mind comes up with! 
I agree, Abby- when making my own spell or ritual, the hardest part is often deciding the intent of the spell!
When searching for a direction for the spell or ritual to go, you may consider some of the following:
- Is there something in your life you’d like to change or enhance?
- Maybe there is a force you’d like to welcome in (or banish)?
- Do you have a diety you could make an offering ritual to?
- The elements are forces of nature- perhaps consider a ritual for the benefit/healing of the world?
Making your own spells and rituals is a great practice, but it can be tricky to get started! More guidance for designing your own spell can be found in:
Good luck and blessed be! 