I’ve been to countless traditional and non-traditional speech therapists throughout my life and the things that helped were: - Stopped giving a fuck. Embraced my stutter. I treat my speech like I would have treated a lost limb - I have a disability and I’ve got to live with it. If anyone laughs that’s their problem not mine. Speech drastically improved when I stopped worrying. - Went to a psychiatrist and therapist, got SSRIs and CBT for my anxiety issues, low self-esteem, etc. My speech is much better on antidepressants though your mileage may vary.