I feel your stress. I was nervous as hell but what helped me was practising reading it aloud over and over again. Lock yourself in a room and just read it out. Read it slowly and try and speak clearly. Don’t rush it. I think I read my speech aloud about 30 times. Not in a row, but spaced out during the day. And remember, the audience is on your side. They are rooting for you! You will be nervous no matter what. Just go into the speech knowing you have done as much prep as you can. All the best with it. Let us know how you went.