My best experience with speech therapy was as an adult (university age). I had seen speech therapist after speech therapist as a child for my stutter but I wasn't ready to accept it and I was so resistant to putting any work into something that I couldn't accept that I had to deal with when none of my friends or brothers had to do anything like it (yes, that's what was important to me at the time haha). So I stopped therapy as a teenager despite the fact that my stutter was pretty bad and made me self conscious. After my first year of university I decided that I needed to figure something out and start accepting this part of me that wasn't going away so I started researching therapy in the city I was living in. I can't remember exactly how it happened but the speech pathology program at the university did a sort of practicum where the Head of the department (a speech therapist who specialized in stuttering) worked with a practicum student and a person who stutters. They got in contact with me and I recieved 4 months of free speech therapy as part of the program. This absolutely changed my life, having speech therapy as a young adult. Not only did I learn techniques and strategies for dealing with my stutter but I learned how being open about it helps with fluency as well. The speech therapist kept seeing me for free for years after until I moved to a another city, and got me in contact with a support group for people who stutter. Long story, but the point is that speech therapy as an adult was so important for me. If you live in a city that has university or speech program that might be worth checking out, or reaching out to see if there are any sort of support groups near you.