I also stutter by myself as well.. Mine has gotten so bad. The worst it’s ever been. Even after I was pretty fluent for years, barely noticeable. After all the hard work I put in, it can unravel so quickly but the main thing is to keeep trying no matter what. Wierd thing that happened to me as well that could be anxiety based as well, the doctor asked me to cough, and I blocked… and was not able to cough. How fkn wierd is that like why and how??