Korea-born California youtube star David Choi played at the Kata Theatre today in Seoul! It was awesome. his korean wasn't all that great... but the fact that he tried despite some of his bad pronunciation and lack of some vocabulary, makes me think about my situation and how I'm sometimes shy to use unfamiliar languages, despite the fact that I know exactly what to say!
I totally understand your situation as I am a language learner as well.
I always believe that a talkative person learns the language faster than a shy person. ( Actually I am the latter one. ^^;;;)
And also you don't need to feel shy to use other language(Korean or other languages).
It is Not your mother tongue.
Here many people will help you! Don't worry to make a mistake!
We are here for you!! lol