Anxiety is normal. Unless you're a superstar with 64 interviews, there is exactly nothing enjoyable about this process. That can't be sugarcoated, it just blows. The good news is that so many of the people on this thread who didn't have any interviews at this point last year, or even later in some of our cases, ultimately ended up getting into medical school.
And once you're in, you're IN. Nobody cares what you got on the MCAT. Nobody cares how many interviews you had. Nobody cares where you went to college, or how many volunteering hours you had, or how many times you were published. You get to be a student. You get to learn about the human body and medicine all day--what could be better than that? I got "honors" on my first unit of medical school, and it felt so validating to finally feel like I was supposed to be here after spending an entire year being told, "no" by school after school after school after school. Once in awhile I will look back at some of the posts I wrote when I was going through this myself, and so many of them exude this anger and sadness and resentment at the world. It reminds me of a quote that I was told, but couldn't fully appreciate at the time: "Life can only be understood backwards, but must be lived forwards." Not a single second goes by that I am not immensely grateful for the opportunity that I have been given. I have the greatest job in the world.
It will happen to you too.