Maybe you could take a course on how to write poetry, read up on poetry in a book, or try and try again to create your own piece of art, what ever it may be, just write. It is just like telling an old friend about being in high school, only you are writing about it in a poetic form. There are many poetic forms, which seem to take place when you write poetry. A lot of children seem to start writing poetry in one form, which is the Rhyme form. The Rhyme form does not have a specific length, but seems to take on four sentences each paragraph.
Violets are blue.
Sugar is sweet. And so are you. As you can see from this Rhyme form that blue rhymes with you. Another example is I can feel your love. It holds me tight.