This is a great question, and the answer is, it depends on the severity of the speech and how much time and effort you devote to the process. On average I see people begin to experience noticeable changes in their confidence and speech in 1-2 weeks.
By week 3 we see more consistent changes. Between weeks 6 and 8 we see dramatic changes from when the person first started.
Furthermore, these changes continue to increase as long as the client continues to get out and speak, just like one would experience in mastering a new language.
The more you use it, the more fluent you become. Studies show that it can take as little as 18 days to form a new simple habit pattern.
The average time is 66 days and could take 254 days or longer for more complex habit patterns.
Remember, these times are for making the new pattern automatic (when one reaches automaticity) where one doesn't have to think about it anymore. However, as I mentioned above, we see our clients form new thinking and speaking patterns (a repeated or regular way in which something is done) in as little as 3 weeks. To make these patterns habitual, you should expect it to take several months of consistent usage.
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