Both my writing and teaching draw from a large well of creative energy. Grading papers and editing or technical writing drain it. Some writing sessions energize me while others deplete my creativity a bit. (It depends on the project and where I’m at in my writing process.)
I always seek activities and tasks that refill the creative well. Reading books, watching movies, discussions with friends over coffee, and attending conferences and workshops all fill the well. So do my “productive procrastination” tasks. (These are non-writing creative endeavors such as creating character trees or scene collages, painting my “inspiration angels,” or cooking.) Different things fill the well in smaller amounts but they still help refill it.
I’ve had to work hard to see some events as beneficial to refilling the energy, such as the reaction of the children at the library after a story time, seeing things click with my students in creative writing classes, good editorial news (for myself, writing friends, or students), or discovering support in unusual sources.
Whether you realize it or not, you are doing things that also refill your creative energy or help you feel motivated to write. If you focus on what you enjoy about your writing and the success in small accomplishments, your creative well will replenish itself, too.