I wouldnt worry too much about 2012 theres not too much evidence and besides. You could die any day you live. In fact a lot of us almost died march 2nd 2009 without even knowing it. Infact almost everyday since february weve been at risk of dieing because of asteroids coming so close to earth. Take a look at this.
Copy and pasted from
http://www.spaceweather.com/ Near-Earth Asteroids
Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.
On March 4, 2009 there were 1035 potentially hazardous asteroids.
March 2009 Earth-asteroid encounters: Asteroid Date(UT) Miss Distance Mag. Size
2009 DS43 Mar. 1 6.9 LD 18 32 m
2009 DD45 Mar. 2 0.2 LD 11 35 m
2009 DN4 Mar. 3 8.1 LD 21 27 m
2009 EA Mar. 4 7.4 LD 19 24 m
2009 EW Mar. 6 0.9 LD 16 23 m
161989 Cacus Mar. 7 70.5 LD 16 1.7 km
2009 EH1 Mar. 8 1.6 LD 18 12 m
2009 DV43 Mar. 10 8.5 LD 18 80 m
2009 EU Mar. 11 3.5 LD 18 21 m
1998 OR2 Mar. 12 69.8 LD 14 3.3 km
2009 DR3 Mar. 14 7.2 LD 16 225 m
Notes: LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.
Also a really cool story about asteroids is this one.
http://www.universetoday.com/2009/03/02/asteroid-2009-dd45-just-buzzed-by-earth/I do believe a lot of change will happen in 2012 but I dont believe the world will end to say the least..