About 2 months in. In many areas of speech, I've made significant improvements. His usage of temporary crutches have been so far quite effective to gain fluency momentum and reduce the anxiety of hitting the next block. You can read the stories of others in his charitable foundation, [Speech Anxiety Anonymous](https://speechanxietyanonymous.org/pwss-archive/). There are also numerous videos on his Twitch account that shows you the progression of those with full blocks to vastly improved fluency.