It is how our brains are wired. I would like to have you take a look OP at a page on The National Stuttering Association’s website on what causes stuttering. Also you can navigate around to fine a lot more information on local support chapters and tonnes of information about what research is being done to understand and to find a cure. Here is the web link OP: https://www.westutter.org/understanding-stuttering I hope you will find some answers to your questions about your stuttering. Good luck!