Poem memorization help please!!! tips needed!!!?

Okay so i have to memorize a poem for my English cl by Tuesday! (today is Sunday) this is part of our finale and we have to do it in front of the cl. I chose Annabel Lee by Edgar Allen Poe. i already memorized the first three sections(idk what they are called) but im really having trouble memorizing the rest. any tips on how to memorize it?