Try introducing yourself first when you feel like presenting yourself is coming up. I know this won't work in all situations but I found out that for me, I'm more fluent when I do the introduction first. Rather than someone asking my name and anxiety really kick it. Introducing yourself first, could give you a chance to get going, by saying a start up word like- "hey, my name is ....." Rather than being asked your name, and getting stuck or blocked on trying to say only your name.