Sometimes I feel stupid.? I don't know what I'm feeling.?

I've asked this before but I need reassurance or some answers. so I had a CC meet today and I was in art class so I didn't hear the announcement that I CC runners need t leave early. members of da team came to the art room to tell me and my friend to hurry up. I had to rush to the lockeroom to change and then I had to go all the way back to my locker to pack my bags. I know the bus wouldn't leave without me and my coach told me they would wait but I wasn't going to take my time in the hallway. So the janitor (who I had an akward confrontation with him before) told me to slow down politely and I'm like "I have cross country meet, my bus is going to leave right now!!" I said while breathing kinda heavily cause I had a backpack on my back plus all my other bags. I can't remember but it was something like " I said no running in the halls unless you want a DHALL!" so I stopped running and once he was out of my sight I ran to the bus. I started thinking about it and felt immature.any advice?