I couldn't finish the mile?

so during a track meet I decided I wanted to do the mile as one of my events since I'm not very good at it. (I'm better at sprinting). I was at a good start but quickly people started passing me. I near the end of my second lap I really wanted to quit and I don't know why. I think I was just embarrassed that everyone was so much faster than me. Anyway my half mile time was 3:27 which isn't so bad but I was so mortified since I just quite and everyone finished and they probably think I'm so weak and a coward now. lol. Can someone tell me any tips to prepare for the next mile and how I can deal with the embarrassment? Is it something to be embarrassed about cuz idk why I am. Usually i can finish a mile but idk why I couldn't this time.

Ps. I wasn't feeling to well the day before.

Thanks! Pls no mean comments are anything ahaha