This is what I will do if I was in your situation. Take my advice with a grain of salt or maybe some other students can advise you as well.
1.) retake your DAT at the end of August or mid September, this will give you a chance to receive more interviews in November after they receive your new DAT. Remember, when they receive it.. They are probably sending out interviews for November. You would want to land one of these interviews or even multiple by December.
2.) Add more schools. With your GPA, it isn't guaranteed to get an acceptance. Your chances are slim right now because of the 2 sections that are 17. One of them being the most important, biology.
3.) If you are still in school, make sure you are taking some classes that will not lower your GPA. You will be sending an academic update in December, this will give you a chance to shine. With better DAT score and better GPA, you probably can land a post December interview.
4.) From here and until your acceptance, you should shadow and volunteer more.
Good luck