Sorry to hear about your experience. It has been shown in research studies over the last 90 years or so that people who stutter are much more fluent when alone. Eric Jackson, in a 2021 Journal of Disfluency paper, showed that when PWS fully believe that they are completely alone, then they are completely fluent (something like 7 stuttered utterances out of 100,000 syllables spoken, over 24 subjects). So my question to you is: if you go somewhere where you really know that no one can hear your voice, like a stand-alone house with no one in it except you, are you fluent?