Who am I Video Presentation nervousness

So I think that I am done with my Who am I video to present to my class.

Just that I am nervous about presenting the video to the class because I may come off as stupid. I am also nervous that my classmates might ask me questions that I might not be comfortable with answering.What I did was I developed questions that I think they might ask me and formed answers to them.

Anyone have any tips in ways that I can overcome this nervousness? Thanks