Im 21 have had stuttering since elementary school. Now that I'm out of school, when it happens it's not so embarassing. Its more about how you feel about it, than how others feel that matters, and any mature adult isn't going to judge you for it. If they do, then fuck them. How can you judge someone for something they were born with. I've been through it though believe me, I just don't care anymore, how you react to your stuttering can heavily influence how others will react to it.