Finally passed my Energy Utilities exam after failing twice — here's what worked

So I've been trying to get this certification for almost eight months now and I honestly almost gave up. Failed the first attempt by 4 points, second time by 2. The frustrating part is I knew the material conceptually but kept blanking on the specific regulatory stuff and grid management calculations under pressure.

What finally turned it around was actually committing to a structured ENERGY UTILITIES practice test routine instead of just reading through my notes. I was doing 2-3 timed practice sessions per week in the last month before my third attempt, focusing specifically on distribution systems and rate structures because those kept tripping me up. The repetition really does build pattern recognition in a way that passive review just doesn't.

Curious if anyone else has gone through this exam — what sections gave you the most trouble? I put together a rough study guide based on my experience that I'm happy to share. Scored a 78 on my third try which clears the passing threshold, so whatever I did clearly worked.