Thank you for all the information. I read your posts and comments. As many might think, I believe that the fact you changed so radically for the better is not unrelated to the fact that, as you explained in a comment, speaking anxiety and the barrage of negative thoughts were never a major issue for you (at least that's what I understood when someone asked how you managed to deal with anxiety). The closest I came to carrying out a complete restructuring of my speech was when I was self-taught with the book Comprehensive Stuttering Therapy during my teenage years. I managed to speak perfectly fluently with my family (remember, I always had mid/severe stutter), but when I spoke with anyone else, it seemed like I had never done anything to improve my fluency. The uncontrollable outburst of negative thoughts made it impossible to maintain any level of control. That’s why I always believed that any approach solely focused on correction, while ignoring the psychological aspect, wouldn’t work for me. Now I have a job, live alone, was in a very long relationship, and live a normal life, but the uncontrollable anxiety in the moment of speaking is always there. I never desensitized myself, and I couldn’t possibly be more independent in order to improve this naturally. I donde know if there is some sort of therapy that fits my situation.