Yah I have had this my whole life, and now in my early twenties it's difficult moving on from the social anxiety that has left me rather socially stunted and with low self confidence. My stutter at this point seems to be from mostly subconscious anxiety, as I rarely if ever stutter talking by myself. It's gotten better as I've tried to fix my reasons for my low self confidence, since I think that's the root of my anxiety issues. It's not at all easy though when your anxiety worsens your stuttering which in turn further worsens the anxiety. It's a terrible situation that left me when I was younger to just avoid speaking if I could help it.