Making Singlet Oxygen - kino chemistry channel

My biggest bruh moment with chemistry in school was when we were doing some reactions with ammonia and one of the ways we could tell whether the reaction occurred was by smell. The instructor explicitly told us to do that that waving motion where you lightly blow it to your nose to smell it, so naturally 10 minutes in I forgot about it, opened my flask and took a good whiff of unreacted ammonia (because naturally I failed to produce the required reaction as well). It burned my nose and upper airways and I had a headache for the remainder of the day, and yet I didn't tell anyone about it because I was so embarrassed

I'm really not good at all this chemistry stuff