The January interview is pretty much booked solid. The interview is in week and there are a lot of applicants that are upset because they didn't make the list. I understand your frustration and am glad to hear that you are motivated to get to interview. There is more to the process than just getting invited you have to actually pass the interview to get to your goal.
If you didn't make the list for this interview then just look at it as more time to prepare. Don't get too upset - Just keep focused on your goal. Remember, your goal should be passing the interview not just getting a slot.