What's the worst that could happen? You stutter and people think, "Oh, that person stutters." It's not the end of the world. Expect that you will stutter. Make it a certainty in your mind. Face the fear of it, imagine the worst case scenario, then realize you will survive it, should that happen. It's kind of a bullshit paradox, but the key to being more fluent is to stutter your ass off.