So first step is choose a type of poem. Free-form? Sonnet? Haiku? Custom? If custom you have to make your own rhyme scheme. After that, choose a theme. What will your poem be about? Life? Video-games? Birds? Once that's complete, write! (Tip: have a thesaurus open, and a website that lets you find rhymes for words) That's it! You've written a poem! Congratulations!