Now is not time to panic! Yes, many people on SDN will have had 8 interviews already and have another 12 lined up, but there is still a looooooong window of opportunity to get your first interview and a good chance at acceptance.
I too had average stats when I applied last cycle. At this date last year I was almost embarrassed that I hadn't received a single interview and was staying very quite with my posts here. But given a little more time, some interviews rolled in, and shortly into the new year I received my acceptances. Following the cycle very closely last year there were plenty of people on these boards who had to wait until after December before they got their multiple interviews, and multiple acceptances. Just be patient with the whole process and you will most likely get your shot.