Describe your favorite moment of each part of the day
At the end of the day, write three things for which you're grateful: one about your morning, one about your afternoon, and one about your evening.
Write about a success you had (and who helped you)
It's your thank-you speech, if you will. Be sure to describe in great detail how you wouldn't be where you are now without said person (or thing!).
Write about a hobby
How does this hobby make you feel, and why is it so special? Are there specific memories or people you associate with this hobby? Do you make time to practice this hobby?