Feel like I have tried absolutely everything and always get nowhere

Feel like I have tried absolutely everything and always get nowhere Things I have tried: Mcguire Program Lee Lovett Method Speech therapy 10+ years Fasting, Healthy eating Wim hof method Pushing outside my comfort zone Psychedelics Things can work for a few days, but then go back to everytime I'm around people, 99% of the words I try to say are completely blocked Maybe I need to go through the acceptance route.. I have a severe stutter and will never be able to connect and fully express myself to other people