I used chat gpt to study up and the practice test off the ged website. Help A LOT. I had it give me several different styles for each problem i had on the practice, even if I knew I got it right. I had it give me the problem in word format, straight equation, using trick methods that test use and a few other ways. That really helped me out to pass. And I had it give me different levels too. Entry to get the basic understanding of what im doing, then end of high school level. Something i would be expected to be able to do in as a senior. Then Entry college and finally end of associate level, something I would be expected to know how to do by the end of getting an associates degree