Had a panic attack. Help

Today our school was celebrating republic Day and I had to give a speech in English on it. The practice and rehersal was good but as I entered stage I said a few lines and then, I got a panic attack and then, I messed up. I fell there and then I was taken to nursing room. My body was chill and I was shivering. I keep thinking about the embarrassment I will face on Monday because people are assuming I forgot my lines even though I didn't. What do I do to cope up with myself? Ps- I won't face embarrassment because everyone were serious but I am still overthinking about the fact that I won't get to do something like this again and people will have a bad image of me Thank you for reading