You can start like this:
Hello, everyone, I am honored to be here. First of all, I sincerely thank you for giving me this opportunity to talk to you on this special occasion. I am very happy to study with you here. Thank you.
Hello, everyone. It's an honor to be here. First of all, I sincerely thank you for giving me an opportunity to talk to you on such a special occasion. I am very happy to study with you. Thank you.
You can also start with I'll get to the point, and then just say the text.
That's all, thank you for my speech, thank you for the end.
But I suggest that you can step down after I have a dream, because you have retained the feelings of the original text. If you add yourself, it is unnecessary to add badly.
Finally, the content of English speech is not important, what matters is pronunciation and intonation, body language and passion.
I wish you success!