Failed CET twice — what actually helped you finally pass it?

I'm at my wit's end here. I've taken the Consumer Electronics Technician exam twice now and failed both times — 68% first attempt, 71% second. I need a 75% to pass and I honestly thought I was ready this second time around. I spent about 6 weeks studying, mostly just reading through the ETA study guide and watching YouTube videos on circuit theory.

What's killing me is the digital electronics and troubleshooting sections. I can handle basic Ohm's law stuff fine, but the moment they throw a complex troubleshooting scenario at me I freeze up. A coworker who passed on his first try told me he relied heavily on a CET practice test approach rather than just reading — actually simulating exam conditions. Did that make a real difference for anyone else?

I've got my third attempt scheduled for 8 weeks out. I'm willing to put in serious hours this time. Would love to hear what study strategies, resources, or exam tips actually moved the needle for people who struggled at first before they finally cleared it.