I had the same problem when I was in college. I've always wanted to be a veterinarian but I thought that giving instruction as a veterinarian seemed so intimidating to me given the fact that I stutter. I gave in to my fear and now I'm on my 5th year studying a less social course, Information Technology majoring in Network and Security. I wish I had chosen Veterinary Medicine since the start. Don't make the same mistake I did. Always remember, your mouth, your rules. Your stutter doesn't control you, you do. Do what you love and you will not regret it.