Stuck in the 'Amharic root pattern' loop—help!

I’m a grammar-focused learner trying to internalize the trilateral root system. I understand the theory behind how vowels shift within the verb patterns, but whenever I try to speak, my brain freezes trying to conjugate correctly in real-time. I need a way to move from abstract rules to instinctive speech—has anyone found a method that makes verb roots actually 'stick'?