Advice Needed, Please Read!

I dont want to beat around the bush, so let me just put my stats out there first:

cGPA: 2.998
sGPA: 2.7

-MCAT: Signed up for September 8th for the first time, Honestly have not had enough time, so might take again in January.
-2+ years of volunteering at a well known hospital during my undergrad w/ hands on clinical experience.
-have shadowed a DPM and completely loved it.
-The reason I want to pursue podiatry is genuinely because of dance. There's a story here, but I dont want to bore anyone with the details! But all in all, I know I want to become a podiatrist, theres no question about it in my mind.

So i need some advice. I know AACPMAS planned to open their application cycle August 1st. So as for the MCAT, I'm only going to really have a solid month and a half to study b/c of some family issues after graduation. So I know if I retake it in January, i'll do much better. That being said, I'm planning on sending my application in w/ a pending MCAT score. If i dont do so well in September, and decide to wait and send in my January score instead, is that really killing my chances??

I know that my GPA and all isn't great at all, so I'm completely lost as to what to do. Also, for my LOR's right now I have one Science professor and one DPM, besides science professors/research professors, who do you recommend getting a 3rd letter from? (I cant ask any science/research professors b/c I havent kept in touch.)

Sorry for the numerous questions, my heads a mess and I could use some help! Thank you!