A couple of things...
I'm concerned about the OP's sincerity, or at least her accuracy.
Not one mention of Jesus, the very one that she took the last day quotes about Noah from, and a complete neglect of mentioning His prophecies about the signs in the sun, distress of nations, earthquakes in diverse places, etc...
No mention of the Mark of the Beast, which MUST come BEFORE the seven last plagues, which come just BEFORE the second coming of Christ. Obviously, there is not enough time for the Mark to be enforced before the December 21st date. And the scriptures do NOT teach of a pre-tribulation "secret rapture". No matter how many Tim LaHaye and Hal Lindsey "students" try and convince you otherwise.
And speaking of the December 21st date, the OP obviously has very little knowledge concerning the Mayan calender. I would suggest that she research it further. It DOESN'T prophesy the end of the world, or anything even like that. Myself, I don't place much credibility in any predictions made by evil, human sacrificing, demonically-inspired priests of antiquity. Only God, and His REAL prophets know the future.
Most people don't know this, but the OP's avatar, with the woman giving the "shhhhhh" sign with the one finger in front of he mouth... IS PURE EVIL.
If you know anything about this sign, then you know that it's a luciferian sign of occultic origin, and that it is a sign of secrecy, and deception.
Shhh = Harpocrates = Ancient Mystery Schools
In Greek mythology, Harpocrates is the god of silence. Harpocrates was adapted by the Greeks from the Egyptian child god Horus. To the ancient Egyptians, Horus represented the new-born Sun, rising each day at dawn. When the Greeks conquered Egypt under Alexander the Great, they transformed the Egyptian Horus into their Hellenistic god known as Harpocrates, a rendering from Egyptian Har-pa-khered or Heru-pa-khered (meaning "Har, the Child").
Here are some images of Harpocrates, who is always depicted with his finger in front of his mouth.
[link to www.google.com
Now... Don't get me wrong. I do believe that the last days are rapidly moving upon us, but all this business about the Mayan calender, and December 21st means NOTHING to me. I place m,y faith in God, and His word, and not in demonic, murdering, heathens.
I also know that there are some major events that have to occur first, before the end of the age. Prophesies that have not been fulfilled, and MUST be, before the return of the Lord. However, as I said, we are rapidly moving into a time that ALL will be fulfilled, and I heartily suggest that you do what the OP neglected to mention, and accept Jesus as your Savior.
Just believing in "a god" doesn't mean doodly squat to the one and ONLY true God. The One who's Son died in your behalf. There are literally HUNDREDS of false "gods" in this world, and they all have ties to Satan, the master deceiver.
That is why the gospel of the kingdom had to be preached into ALL the world, as a witness, before the end would come. Well, that one MAJOR prophecy has been fulfilled, and almost everybody has taken a side, concerning the Savior. Personally, with all the signs EVERYWHERE around us, I cannot even fathom how the atheists in this world do not see what is so plainly evident.
But then, when I read this, it all makes sense:
"Even him, whose coming is after the working of Satan with all power and signs and lying wonders, and with all delusion of unrighteousness in them that perish, because they received not the love of the truth, that they might be saved
. And for this cause God shall send them strong delusion, that they should believe a lie. That they all might be damned who believed not the truth, but had pleasure in unrighteousness." 2nd Thessalonians 2:9-12
"And I heard, but I understood not. Then said I, O my Lord, what shall be the end of these things? And he said, Go your way, Daniel. For the words are closed up and sealed till the time of the end. Many shall be purified, and made white, and tried, but the wicked shall do wickedly. And none of the wicked shall understand, but the wise shall understand.
" Daniel 12:8-10