I've worked in the aircraft field for 20 years and have to present numbers and reports. But what helped me force myself to find ways to cover up my stutter is being a professional wrestler for 15 years. I wanted to do it so bad that I was willing to talk on the microphone in front of a crowd. Some smal, sometimes a 1,000+. Something weird I learned was the smaller the group, the more chance I'll slip up. As far as work goes, when I have customers or auditors that I have to speak to, wrestling helped me with controlling the room. Because in promos, your job is to make the crowd feel like you're the most important guy in the show. So the confidence is what drives me to not slip up as much. Now, there are certainty times where I feel defeated right before I talk, so there just isn't getting around it sometimes. If I see someone grin or react to me stuttering (sometimes it's not in a bad way, people don't know how to react to it) then I focus too much on that person and it's game over. Most of the time I can hide it, but if I'm caught off guard by someone in certain ways they act then I struggle.