I wouldn't be so hard on yourself. You are not rejected until they inform you of that explicitly. I believe a majority of the spots have been claimed to this point, so it's not so much that completed applicants aren't being given interviews because they aren't qualified, they just have to be a lot more selective on the II's they give out. By "selective" I don't mean competitive... they will be more careful to invite applicants that they are more certain will accept their offer for admission. ACOM isn't a state school, so they don't technically have regional preference (it just works out that more southeast applicants will end up going there), but I am willing to bet when it gets to the point that they only have 30 or so spots left (but will continue to interview at their normal rate) someone from Mobile or Panama City with a 3.1 gpa and a 500 MCAT may be more likely to get an invite than someone with a 3.7 and a 516 who lives in San Francisco. It's just the nature of the beast that is the admissions process. They indicated that approximately 40 (give or take 10-15) accepted applicants that pay their deposits will end up actually matriculating somewhere else and those spots will go to waitlist-ers. This means that the latter part of the interview block (Jan through spring) is a lot more random and unpredictable for students than the first. I'd continue to hold hope and call them to ask about your status and consider sending an interest letter, if you do really want to go to ACOM. I am writing this because I have been known to be guilty of being a pessimist for most of my life but things (for who knows what reason) only started to work in my favor when I became more hopeful and optimistic. Maybe that's just a perception based on my newfound attitude, but either way I find life to be a better this way.
Good luck. I sincerely hope you have good fortune very soon.