Draw a vertical line to divide the page in two halves, left and right. Write the letters of the alphabet down the left side of the page. For each letter, write down a thing that you “should” do that begins with that letter.
Read over the list. Use it as a springboard for ideas to write about on the other side of the page. In the right-hand column, write about things that make you happy.
Imagine that the various tasks and accomplishments on that list of “shoulds” were all finished and done completely right. Why would you be happy about that?
Give your work a title and write the date on it, too.
Here is a more detailed version of these directions.