Need a poem to memmorize. im 14yrs old. not kiddie?

No picture, but I guessed by the screen name that you're a girl (If not, sorry.). If so, "Phenomenal Woman" by Maya Angelou is a great poem, easy language to understand (and memorize quickly) and a great message for teen girls. It's four stanzas. Two would be enough for your required length, but you can remember all four, I'm sure.