I removed 90% of my stutter, especially the hardest blocks with no pills and alcohol only seemed to work until wanting to push yourself passed your comfort zone like going up talking to the girl at the bar.   Our stutter is a great scapegoat, its real and is a physical reaction to the smallest things, the smallest doubt, the smallest reminder, you can talk fine until someone asks ypu to repeat that which you just said fine and...what happens?  Same words, same sounds, why then?   Everyone has doubts and fears in life, stutter or no stutter, why are fluent people so afraid of public speaking?  More than death itself sometimes.  Work on yourself, don't fill your body with never ending crap that will only build a tolerance to needing more and more until you have more problems than you started with.