You're fine. What did you use to study?
I started off with Chad's for OC, GC, and QR. Just learning the material, taking detailed notes, studying those notes, and taking the quizzes. I did these twice to make sure I really knew the material.
Then I moved onto DAT Destroyer for OC, GC, and QR practice. I only went through it once, marking the ones I thought were difficult/important and reviewing those a couple days before my exam. I also used Math Destroyer, which was a little overkill (just because there are 14 tests, only did 9 of them) but it definitely helped!
For Biology I went through Cliff's AP Biology 4th Edition (I recently heard 3rd edition is better, but 4th worked fine for me) and took my own notes from every chapter, just because I remember things better when I write them down. For the anatomy section, I used KBB, Cliff's, and Feralis notes. DAT Destroyer was the best way to tie all of the biology together. I went through that twice - once after I finished studying the material and once a couple days before my exam to make sure it was fresh in my head. Make sure you really read and understand the explanations! Those were more helpful than the questions themselves.
I found out about DAT Bootcamp a couple weeks before my DAT. I went through the GC, OC, and Biology tests 3 times before my test. I wouldn't say the questions were exactly like the real thing, but those questions/explanations helped me reason through questions on the DAT. I thought Bootcamp's QR was overkill so I just stuck to Math Destroyer. I didn't use Bootcamp's PAT either, but looking back I probably should have.
PAT I didn't start until about a month before my test and I only used Crack DAT PAT. I went from 17 to 20 on those practice tests, so I felt prepared, but I guess not.. haha. I definitely think Crack DAT PAT was worth it though - just do a little practice everyday (even the day before the test) to constantly work on your perceptual ability.
Hope that helps!