Good luck! So basically what I'm trying to advice is, normally our incorrect response is focusing on trying to control our mouth. My suggestion is, instead of this, you could focus on 'trusting your instinct to move your articulators automatically in order to pronounce the letter D' in order to stop anticipating and justifying that you will stutter on the letter D. Also, no one (including you) can predict that you will stutter on the letter D before you stutter. So 'predicting' will only create a stutter on the letter D. We stutterers focus on the fight or flight response and the stutter feeling in order to 'see a stutter on the letter D' coming. But, if you make a promise 'I cannot predict stuttering on the letter D' then you tell your body to **let go of:** control of your mouth, control of fight or flight response, control of stutter feeling and control of anticipation and justification.