Don't be discouraged since you're just starting out. I would recommend using other resources to practice for math as well, such as Math Destroyer, which has questions that are more representative of the difficulty level and type of questions you'll see for DAT QR. The Crack DAT math I heard was somewhat more difficult questions on average.
For your PAT, Crack DAT PAT would be the best. Just keep practicing. The key is to develop your own system for tackling each subsection under PAT. For example, to practice for the hole punching section, I actually printed out similar squares and used a hole puncher to figure out what the pattern would be like, so I could actually hold it in my hands to make the actual folds and do the punches to learn from my mistakes; for taking the test, I used the 4 x 4 square to keep track of the punches. For cube counting, there was a SDN post about how you should develop system to count in the cube columns in order from left to right, top to bottom so you could actually keep track of the number of cubes, as well as their spatial locations (too much to explain on here). For the other sections, I used to just try to visualize how to see in 3-D, especially for pattern folding, where sometimes I would try to draw out the patterns on paper in 2-D and then try to fold it mentally. I don't have much to offer for angle ranking since I was never great at it, and never seemed to get any better either.
I used to study PAT as a break from studying the other DAT sections. It was a little challenging starting out, but believe me, you'll get much better with time and practice.