Why does my word order feel so 'English' when I try to speak Czech?

I’m a grammar-focused learner, and I understand the cases theoretically, but when I form sentences, I keep defaulting to SVO order. I know Czech is much more flexible with topic-comment structure, but I can't seem to make it sound natural in real-time. How can I practice internalizing the emphasis-based word order rather than just translating word-for-word?