PLEASE HELP!! I Need Help On My Poem. Thank You So Much!?

Okay I need to write a poem for my english cl and i am terrible at it! I am a freshman in high school. It doesnt matter how long it is as long as it has 4 lit techniques such as; Metaphor, Simile, Alliteration, Repetition, Imagery, ...and so on. So PLEASE i really need help with a poem. Anybody got any good, simple ones i could use? Thanks guys(: