The hype for December 21st 2012 is well underway, the movie attracted a lot of viewers and there is a complete section in bookstores for all the books about 2012. There are primarily two interpretations for what may happen, the end of the world apocalypse scenario and the shift in consciousness scenario.
This is all based on the Mayan Calendar which could end on December 21st 2012 or continue depending on your interpretation and planetary alignments. This is what gives all the fears the necessary plausibility to create doubts, yes there is a calendar, that is true, just like Y2K, that was true also.
Since the beginning of time, humans have had this fear of the world coming to an end, and for thousands of years it hasn't happened, obviously. It is a great selling point though combine a plausible event with this fear and you really create panic. Think back to December 31st 1999, what were you expecting, what hoarding did you do, and what happened?
I will leave you to read more on the Mayan Calendar it is interesting reading, look for the different interpretations that have the calendar continue. You may find some peace.
The other aspect and somewhat less threatening, though some authors have some being left behind from the upcoming conscious shift. For most people they will feel no difference, just like the harmonic concordance of 2003. Most feel the conscious shifts from events such as the tsunami and the recent recession, those really provide a shift in consciousness, albeit short term.
Again looking through history, cycles, human behavior and emotions the patterns are clear, at least to me. That's why I'm confident that December 22 2012 will be a typical day as will the decades that follow.
I would encourage you to research as much as you can now, the hype now is nothing to what will happen in the next year. When you have found peace, you will be able to turn it all off and focus on living.
I do find it interesting that a number of those who believe it's all over in 2012 also believe that global warming will destroy the planet too. It's a bit of a split energy don't you think? If you really believe the former why would you have to worry about the latter?
I hope this brings you some peace on the issue.