I’m in university and I’ve had similar issues. You know what’s good, everyone has heard you at your worst. Now You don’t need to be super concerned about when u do experience blocks in front of your co workers..The elephant in the room has “spoken” and now it’s time to move on. You will stutter sometimes. It’s important not to beat yourself up. Now that your coworkers have heard you stutter it’s not a secret. You will be shocked when your stutter gets better because of this. Maybe even make a joke about it. Actually try to make a joke about it. It will ease everyone if your able to laughter at yourself. Hope this somewhat helps. On mobile excuse any formatting issues