Hehe, your speech is arranged by the teacher, which means that you can study hard and that the teacher values you very much, so you should write something yourself. This is also an exercise and can be used as an audition before the exam. Don't give up this opportunity. You have to rely on others for these things. Then how do you do your homework and go out into the society? You will lose confidence. If you want to achieve something in the future, write it yourself. Good or bad, you are the best. If the teacher doesn't arrange it for you, and you want to show your strength, write it yourself, so as not to embarrass your classmates in the future.