Yes. Yes, it can make a tremendous difference. I had a severe stutter until my mid 20s. From as early as I can recall, I stuttered. I had speech therapy through the public schools. It didn't help. I saw an SLP in my teens. For a couple of years. It helped some, but I didn't put in the effort. I'll use the analogy of taking piano lessons but not practicing between lessons. I went back to the same SLP in my mid to late 20s after not having any speech therapy for about ten years. I was able to achieve fluency in a relatively short period of time. I don't recall exactly how long, but it was somewhere around six months or so. The difference being that I worked on my fluency every day. I'm not saying that what worked for me is an answer for everyone. But speech therapy most certainly works for some of us. I went from being a student who wouldn't speak in class and who never presented to someone who can speak to large audiences. I'll always be a stutterer, but I am fluent almost always. My stutter can still present if I am very tired, but it's no longer a source of stress or concern. When it happens, it's a reminder to take better care of myself and get some rest. Some of us give up on speech therapy. Because it hasn't worked so far, they decide it can't work for them. I understand that. At one point I believed that to be true. I now believe that to be a fallacy. IMO, the trick is finding the right speech therapist. I've heard some stories about speech therapy in this sub that make me cringe. I shouldn't really say "the trick", as it's not just one thing that will help you improve your fluency. It's finding the right program. It's being ready to work on your fluency. Getting your head right with regards to your speech. Building on fluency successes. It's a process. You keep working on your fluency. You encounter setbacks, and you keep working. The process is why I think a good SLP who specializes in stuttering is a key component. You're going to have setbacks. Having an SLP to guide me was so important. There were times when they'd encourage me to take a couple steps back from where I was in my progression. Back down to an earlier point in the progression and strengthen some of the skills at that level before moving forward again.