I do have a good answer. After leaving high school, It slowly dawned on me how much speech therapy and my mandated speech technique homework had helped me, I simply did not know. Back then, I was mostly completely fluent. Then followed 2 years of misery and confusion as to why It had gotten so much worse. I did extensive research, and I came upon the conclusion that I’ve echoed for you today. I understand your mindset, and I obviously empathize with your experience, but if you’re going to remain close-minded to the idea that there is a light at the end of the tunnel, I don't know why you'd even consider a speech therapist. I'd invite you to check out my latest post on this subreddit for an insight into AI therapy and how much it can help. I’m not selling anything, all I want is for fellow stutterers like ourselves to have a glimmer of hope for their future, and that near complete remission is in fact possible. You’d be surprised how much meditation for example impacts neuroplasticity which in turn can aid in training your brain. I am no neurologist, nor a licensed speech pathologist, but this is my own anecdotal experience and I’d love for others to give it a shot. As for constantly trying to fix something being no way to live, I can confidently say that doing 10 minutes of exercises everyday really doesn't hinder my life in any significant way, and I've seen tremendous strides in my fluency.