I think i actually have adhd to a strong degree but am now 25 So it just went on untreated, i found my way to deal with it and have a stable life Besides my stuttering, so now when i speak i just feel much calmer, normally my thoughts are a tornado, i thought thats normal but appearantly it isnt Dont get me wrong i still stutter rn but basically no nervousness and deeper voice since i am relax more and just thinking about what I want to think My advice is to just try it if you can, cant know if it helps until you try