It is a thousand times easier said than done. It is hard. But it will not ever get better by not talking to people, so there is no choice but to do it really. Of course stuttering in front of people sucks. But the more people you know that you know don't care, the easier it gets to accept that maybe random people don't care either, if you get what I am trying to say. Anxiety makes our condition so much worse than it would be if we were confident.