yeah, I don't know if I got lucky to have gotten through DAT without reading breakdowns much, but if you do look at breakdowns, you pretty get an idea how and what people studied and find the ultimate combination for youself.
For starters, get a set of destroyer books (science + math, around $200), and for your chillaxing nights and evening, get a subscription to Chad's videos. That will be a good start I believe. And to fill in the knowledge holes, get barron's AP bio or cliff's AP bio for biology section. Read science articles daily if you can to increase your reading speed. That should be a good start I think
Good luck sir! Nice GPA!