For me micro dosing helped but was quite unreliable. Sometimes I felt very social and would start conversations with strangers at my local climbing gym or whatever which I would usually NEVER do but other times it had no impact or even made it worse. I say try it as long as you aren’t taking any other drugs prescribed (like ssri’s) or any other drugs. Also wouldn’t take it if you or anyone in your family has underlying mental health conditions like BPD or schizophrenia. With that being said my experience with taking a “regular” dose (3.5g) in this case, was that I had convinced myself nobody actually gave a shit that I stuttered and that all this anxiety was just in my head. Really helped me let go but it didn’t stick. Psychedelics are very volatile meaning no one person will have the same experience. If you do try a larger dose I would recommend going in with intention, not expectation of “curing” you stutter.