GPA: 3.89
sGPA: 3.89
PAT 22
QR 16
RC 18
BIO 17
GCHEM 13 🙁
OCHEM 17
TS 16
AA 16
Yes, I would re-take the DAT. What did you use to study? For GC what helped me was DAT destroyer (did it twice), DAT bootcamp, and Chad's videos. I ended up with a 24 and when I was starting practicing GC I was doing pretty badly. I highly recommend that.
RC I would recommend Crack the DAT RC. It has a lot of similar style questions to the real DAT.
QR I would recommend the Achiever QR section and Math Destroyer. Chad's videos are okay for a general overview, but they don't help too much.
Bio is all about learning the material. I find I'm a better learner when I watch lectures as opposed to read. I read through AP Cliff's and then whatever I still didn't get (such as the anatomy and phys stuff) I watched Khan's Academy videos, they're free and simple.
OC use Chad's (I watched them twice) and DAT Destroyer I guess (a couple questions on my DAT were straight from this) and DAT Bootcamp.
I'd have to say that Destroyer, Chad's and Bootcamp are key!
Great PAT score tho! And great GPA, you definitely have a good science background with that GPA so do some more practice tests. You can ace the DAT!