One of the most important things I've learned is this:
Yesterday cannot be changed: Tomorrow can be whatever you want it to be.
No matter what hardships you faced in 2011, your future is in your own hands. You cannot change the mistakes you made or the the misfortunes you encountered, but you can change what happens next.
2012 can be the best year you've ever had. But only if you make plans and only if you follow through. Learn from the missteps you made last year, but don't let them drag you down.
Make a plan. Persevere. Make Tomorrow what you want it to be.