I feel you bro , it might not mean much but i have been in a stuttering community in Saudi Arabia Called The smart stuttering community They teach techniques similar to the McGuire programme And I have met a handful of people who stuttered severely and they now do interview in television and on YouTube I would recommend you to give the McGuire programme a shot , but you need to be strong willed Because some of the people like me , who did not commit to the programme gained minimal benefits But the ones who gave their 100% showed remarkable and amazing gains for some of them you can’t even guess they had a stutter