It's a non stop practice I'm afraid! Still having to come back to this myself, having rediscovered how badly a stammer during presentations can make me fall flat on my face - not because of the stammer, but because of how I react to it. New speech therapist is supporting me with this, I'm going to test telling people I'm presenting to about the stammer, very matter of factly, right at the start - rather than trying to pretend I can bullet-proof my way through it and then getting in a massive pickle if/when I can't. Keep practicing!