>>105
Making mistakes is absolutely the best way to learn something in the quickest possible manner.
Being too scared of it is completely unnecessary and just slows down your progression,
although for whatever reason it is all too common among Japanese people.
No one starts out perfect, and in all honesty,
no one really cares if you make a mistake or two in a foreign language.
Just go ahead and set yourself up in an environment to make a lot of errors.
It will definitely help you.