I won't sugarcoat this, you pretty much shot yourself in the foot. May i ask what you used for prepping?
With that high of a gpa, you MAY still have a chance, but it will be slim. I Since you won't be able to retake for another 3 months, you MAY i have to reapply next cycle.
At this point, i would recommend forgetting about d-school admission, focus on school. IF you get call for interview, then get back in the game.
I am sorry things turned out this way, DAT is not a tough test, just put some time in to it and i am sure a person as bright as yourself will overcome it.
Good luck