Its all about pushing out your comfort zones.
I have a stutter and am a member of a speech therapy programme called the mcGuire programme. as well as the pyhsical side of a stutter there is a big mental side to it, so stutterers are afraid of stuttering, so they try to avoid speaking.
what we do is find oppurtunities to speak, so we get more comfortable with it, whether that be walking up to strangers in the street, making phone calls or public speaking. it all helps to make you realiss it isn’t so bad.
So, if you are shy force yourself not be and to speak to people, you’ll soon realise it isn’t so bad after all. Do it tonight, speeak to someone in the supermarket, if I can do it, you definitely can!