(Of course, your projects need not be original research. Nevertheless, it's important that you give us at least some information regarding the larger context.)
NOTE: Public speaking is always a bit daunting, especially if you haven't had much practice before. I know I always got very stressed giving presentations as a student! But there's no reason for you to feel the same. The presentations are intended to give you some practice presenting your work in a low-pressure supportive environment.