Practiced system design completely alone by explaining my design out loud to an empty room and felt ridiculous doing it, but it worked

Didn't have anyone available to mock with for weeks, so I started just talking through designs out loud alone, explaining tradeoffs like there was someone in the room pushing back. Felt genuinely silly the first few times. Caught myself hand waving over details that sounded fine in my head but fell apart the second I had to say them out loud.