Technically, blocking is considered a type of stutter. Your situation sounds very similar to me. I don't stutter that much either, but sometimes I will anticipate a block. It will either take me a while to push that particular word through, or I will substitute the problem word with an alternate word if that's possible. In both of our cases, we are probably already fluent more than 80% of the time. So it seems to me that our problems are purely psychological and situational. Therefore traditional speech therapy wouldn't do much good. What's been helping me is reading books about how the brain works, and how our mindsets can be altered through neuroplasticity. A couple of books that I would suggest reading are *The Brain That Changes Itself* by Norman Doidge, and *Atomic Habits* by James Clear. Since I've started reading these, I have a more positive outlook on speaking, and the times where I block are becoming less frequent. My problem words beginning with Br-, Bl-, Fr- and Fl- are not such a huge problem anymore. They are becoming easier to say with more confidence. Although stuttering threats haven't disappeared completely, they are much less frequent, and I am becoming confident that they will go away soon. As I stutter less, the negative thoughts in my brain are dissipating and getting weaker, because I am starving them. The most important thing with blocking is to **stop yourself from forcing the words out.** It's akin to trying to crash through a brick wall, and chances are you will hurt yourself. It's hard to do at first, but you need to learn how to completely stop, and rid yourself of any anxiety and tension in your body before continuing on. By doing this you will learn how to say the problem words effortlessly, and the stuttering urges in your brain will begin to disappear and be overridden by fluent speaking habits.