Another thing you can do when making a speech is to share your experience in the form of a story. Let your fellow graduates feel the same thing you felt or at least at some point. Tell your story so others could learn from your struggles and from the sweet rewards of graduating. Your experience may be different from others or may have at least a few things that are common, but your experience is there to awaken what it was like for students to struggle and feel the joy of a fruitful future. Think of how you would write your own personal statement. But the difference is it is a speech than just a short narrative essay.