Omigosh I relate to this so much. My parents would always say, ‘think about what you are going to say then say it.’ I was thinking of what I was going to say but sometimes my brain is just incapable of moving my mouth in the right way. I keep repeating myself because my mind wanders and I lose track of what I was saying or because I can’t think of what to say and I don’t want to be interrupted. Or both.