Thought blocking – lp

So a while ago I had a therapist who told me that I exhibited thought blocking. I’ve also had people tell me that I talk slowly and it takes me a while to speak. And I noticed while I’m speaking my thoughts are a lot like this

Hello this video is about
(Imposter syndrome … Should I say that?
How should I say that? I don’t like that term.)
Imposter syndrome and
(What am I saying
I don’t know what to say)
how I’ve dealt with it.

And so I wondered about how to deal with this so that I can communicate better and more coherently.