Great for you. For me is the opposite as your mother said: **Do not think about what you need to say next.** You don´t need to think about it because you already know. It´s on your mind how would you not know. The reason that we have the habit of thinking the words before speaking them is because we have to aproval them considering what the other may like before speaking them. We do not want to be dislike by another person so we hold back. We choose our words pretty careful in order to do so.