Using Chickytutor.com to bridge the gap before my trip to Tbilisi

I’ve been using apps for months, but I have zero confidence actually saying anything. I’m planning a trip to Tbilisi and I need to stop translating in my head. I’ve started using Chickytutor.com to simulate real-world conversations and get immediate feedback on my case endings, but how do I stop myself from waiting for 'permission' to speak during these sessions? I am asking specifically about learning Georgian, not a generic study routine.