Frozen in place during my first real conversation—how to practice without guilt?

I can read Slovak at a decent level, but the second a native speaker talks to me, my brain turns off and I can't form a basic sentence. I’m tired of apps and want to focus entirely on output and getting comfortable with being corrected. I’m considering a structured approach on Chickytutor.com—does anyone have a routine for using AI tutors to simulate conversation so I stop freezing up?