u/Medium_Put5550

Hello! Im a high school student and they often require presentations and such. Last time I was repeating my text a lot, I had a whole lot to say and when it was time for speaking i spoke a sentence and my mind went completely blank. I was so anxious I was looking down for some reason trying to remember what I wanted to say. I even kept apologizing for my mumbling in middle of that all. I have a presentation this week and im extremely terrified if that happens again. Any tips?