Memorization help? Please! Soo urgent..!?

My English teacher decided to spring a last minute project on us before the school year is over. We have to memorize a part of Romeo and Juliet and perform it onstage. I'm in drama club already, and I'm not afraid to go onstage, but the lines and language are so screwy in this play that I'm forgetting them constantly. All I remember is: "Gregory on my word, we'll not carry coals....I mean, and we be in choler, we'll draw....I strike quickly, being moved...a dog of the house of Montague moves me..." and thats it! I have so much more to memorize but I can't do it! I've tried all the tricks in the book, and I can't! What should I do? Do you have any other tricks for me?