dont put yourself in a box. 10 years of IT experience in 24x7 support environments where I had to lead meetings, conference calls, user training. Its going to happen. You will slip up, a word will get stuck, you will get comfortable. Do not give a shit. We cant control it but we can control how we feel and respond to it. My regrets are more so about following where the money is and not where my passion is. I have IT burn out but it has nothing to do with my speech. Find a rewarding and challenging career more importantly. If not you will suffer daily and not because of your stutter