List six things you saw, heard, tasted, touched, smelled today.
Develop it with details.
Avoid using the pronoun I.
Now revise your poem. Many times.
(A revision can be as little as adding a comma or deleting a word.
Or as big as adding a stanza.
Or as really big as putting it aside and starting over.)
Writing spontaneous poetry= self-expression or therapy
Revising poetry= deeper poetry.
Like practicing the guitar every day.
Or working on your putting.