A question about my speech class.....?

[Trevor]

I'm doing a persuasive speech on a topic my sister when she was in college and i go to the same college she did. but she took the class like 6 years ago. Well i ended up not finding any good information and i ended up basically copying her speech but with my own twists and stuff. afterall isnt a speech mostly about how you deliver it? i could have the best information in the world and get a bad grade because i delivered it poorly. Im currently taking this class at my high school but we are video taping this one and then giving it to my college for them to like...analyze. i guess im just worried that if its the same speech guy, that he will remember my sisters speech from 6 years ago! which is pretty rediculous but im worried about it because this was my last option cause i ran out of time. ah!!! do you think that if its the same teacher, who knows if it is, that he or she will remember and then be like "omg he copied her!"? idk im just worried about it and i dont have time to change it. but i like never cheat! and i wouldnt really say this is cheating since i can still get a bad grade.....