So I kind of emotionally broke down today after a super stressful phone call with an authority figure that caught me off guard right when I woke up.

I'm trying to sleep now, and I can't stop replaying it in my head. I reacted stupidly and kind of answered rudely because these types of calls really stress me out, especially when the person is speaking not too nicely as was the case today. I feel terrible about how it went, and I have an important day tomorrow and it's impossible  to sleep.  How do you fall asleep?