There are various programs out there that do help people in various ways with various approaches that work for people. I know in Australia there are 2 main ones. Just need to research to find them. I'd important to find what wirks got you. There are also numerous books out there. What should be recognised is that while there are very clear factors amd signs of stuttering it is varied among people. I used to stutter really bad and now at the point it is mild. A lot of mine is anxiety based. Also there is research being done into it. There are so many things out in the world that affect people in a negative way it is hard to fund and focus on them all.