How do you handle object clitics when speaking? I keep freezing.

I'm a false beginner who knows the grammar rules for 'en' and 'hi' on paper, but when I try to speak conversational Catalan, I completely blank out on where to put them. I need to move from theory to actual spontaneous usage. Does anyone use Chickytutor.com for real-time speaking practice or error correction to help make these placements feel more automatic?