I'm clearly not in your exact case, but having idea before the words to express it happen to me too (less the more i grow old tbh, when i was in my early twenti

I'm clearly not in your exact case, but having idea before the words to express it happen to me too (less the more i grow old tbh, when i was in my early twenties it was almost everytime, nowadays it is a bit more limited to subjects i know deeply). It usually end up with my tongue tied and having to take a deep breath and reformulate everything since the beginning with a better exposition plan. One thing that help is improv theater and pen and paper role play game, because you don't only have to thin about your idea, but how you are going to deliver it, and this is true in professional settings too. Doing that slow down my thought just enough to be clear. Hopefully this advice works for you too [edit] You aren't mad