I reviewed all material I studied everyday. I also did crack DAT pat, and took one practice test each day. I did not take anymore practice chem or bio tests from crack DAT because they were way more difficult than the real DAT, and it only discouraged me from studying when I did not perform well. Honestly, I would not take any practice test 2 or 3 days before the exam (except crack DAT pat because you need to practice practice practice). You either know it or you don't, and any poor performance on a practice test can have bad effects in your studying abilities during those crucial 2-3 days before test day ( at least thats how it works for me)
I would say I studied about 8-10 hours per day during the last week. Mainly review of concepts I had already studied rather than learning new concepts. The day before the exam, I only studied for 2 hours because I was very stressed and I knew it would affect my performance on the exam, so I decided to stop and go to bed (I also worked 8 hours per day which would leave me studying late into the night).
Remember, once it gets to the day before the test.....you either know it or you dont. You don't know what is gonna be asked. You're better off reinforcing the concepts you are already good at.
Best of luck.
Here's my breakdown.
PAT 24
QR 21
RC 19
BIO 23
GC 23
OC 27
TS 24
AA 23