Greetings @jada1!
Amethyst shared a great spell for inspiration- and I agree that oftentimes a lack of creativity goes hand-in-hand with a dearth of willpower and energy as well!
To help recover creativity, willpower, and motivation to get things done, here is a selection of spells you might find useful:
- Spell to Banish Procrastination and Get Things Done
- Spell for Creativity and Motivation
- Work with Carnelian - a stone of creativity and action
- Get Motivated to do Magick
- Increase Motivation and Decrease Fatigue
- Motivation Work
The easiest one is likely to get some Carnelian- just carrying the stone helps to assist with creativity! I have a Carnelian bracelet I wear when writing and I’ve found it to help immensely 
Good luck and blessed be! 