It's weird but when I'm really tired, I slutter less. Back when we weren't in quarantine, school ended at 6PM on Monday, and since I don't sleep much, I'm very tired during the last class of Monday. Problem is, this class is a class where we usually work in groups, and I noticed I sluterred less than usual during this class. It's probably because when I'm tired, my brain doesn't make the effort of thinking hard to find what I wanna say, so I just talk without thinking, which means I talk without worrying about what bad things could happen after I said a thing, so I have less anxiety while talking, so I slutter less.