Acceptance
So what is acceptance? Or true acceptance, if you would.
In my view, it's being open about stuttering at that exact moment and not trying to say it regularly, fluently, and normally as everyone else. It's being open to being different. It's having the courage to say it your way.
When we visualize the training speech (aka tools, stuttering techniques, speech exercises) we typically think about it as a means to speak regularly, fluently, and normally. But what if the training speech was the way to actually open up your stuttering, open up your difference, and express yourself the way you are? Express your true self.
If we could zoom in into that moment, each time you stutter, at that exact moment when the tension is there - that's the moment where you're trying, desperately trying to keep it secret. No matter how much you talk about acceptance.