this. Worth interviewing with someone you know and see how you do.
I interviewed a gent once who was very smart but talked my ear off, including cutting me off multiple times. After 45 mins of this, I stopped him and bluntly gave him this feedback. He was stunned and then thanked me as he realized he had been failing interviews because of this and no one had told him. I didnt hire him, but he was very appreciative and he took the feedback for his next batch.