I studied English for years in school but I still struggle to speak.

I know exactly what I want to say but when I speak, my brain and mouth don't cooperate. Instead of saying Yes, I say No. And I want to say Thank You but I say You're Welcome.

I worry about making mistakes when a native speaker is listening. I feel that they'll laugh at me and I freeze. ​

I am an advanced speaker but I need support and I need to practice with a native speaker who won't judge me.