Sure, so my major sources for study materials and then how I studied:
QR - Chad's videos and quizzes, Bootcamp quizzes -- I reviewed all of Chad's videos and took notes on what I was uncertain about and then I just did a lot of practice problems. Honestly, what helped me was having a sister in 9th grade and tutoring kids for a good part of my time in my Master's program. I really did not have to review much about fractions, percentages...you know the things that trip most people up. I have been teaching it to kids for a while so that is what was super helpful. Also, and I don't know if anyone else has had this experience, but when I took the DAT, I was able to use the keypad and I didn't have to use the mouse. It made calculations really easy and fast. Are they changing this rule now? I'm not sure but it was a stroke of good luck.
PAT - Bootcamp quizzes, random youtube videos online -- So my technique for this during the actual exam was to skip Keyholes and TFE because I am HORRID at those. I did angle ranking by just looking at the answer choices and eliminating. So I looked at the largest and smallest option and just crossed out which ones didn't work. For hole punching, I used this method: . I practiced it until I could do it reasonably fast. For cube counting, best strategy is to just tally one layer at a time and then answer the questions. Some of the pictures were a bit complicated and you really had to think about the "invisible" cubes. Keyholes, I just scraped by. And TFE what really helped me was drawing out what I thought the shape would look like. Being able to visualize it was helpful for me. And for pattern folding, same thing. I looked at just one shape and found what was wrong with it. If I couldn't immediately find out what was wrong with one answer choice I moved on and eliminated as many as possible.
Bio, GC, OC - Ferrali's Notes, Chad's videos and quizzes, Bootcamp quizzes, Cliffs Bio -- I have a Master's in Bio and I taught Labs, so I was actually hoping to do a lot better on this section. Overall, I thought the science questions were a little opaque. I thought they would be more straightforward as they are in Bootcamp. I was using Destroyer a little bit, but it was discouraging and now I kind of wish I had focused more on that. I felt like their questions were more representative because they were not as easy to decipher the meanings. I felt like the language in the questions was meant to confuse you. Some questions were of course incredibly easy in this section. Do not think too hard about those. I did all the easy ones first and then I went back and answered the harder ones. I did that for pretty much every section really except for RC.
Hope that helps a little.