Happy New Year?

Why do I make New Year's resolutions?  I always do, and I never keep them.  Never.  Then I feel bad about not accomplishing my goals.  Even simple ones.  Mine are the same as everyone else's, I suspect.  Eat better, exercise more, be more patient with my kids, finish that project, book, ...fill in the blank.  But I never do.  Not for more than a couple of weeks.  So why do I keep making them?  Some small , optimistic part of me buried under all the cynicism?  And if I don't make any resolutions this year does that mean I have lost all hope?  That this is the best I can do?
Is the real reason I don't keep them because I don't believe I will?  A self fulfilling downward spiral?  Is that just a personality flaw or human nature?

I wish I had some nice happy wrap up to this post, but I don't.  What I would like to know is if any of you actually kept your resolutions last year?  And if so, how?

That being said, if I were going to make resolutions, I would actually only make one:

Be More Disciplined.  It would solve all my 'issues' - eating, exercising, writing, keeping up the house, keeping up with email, interviews, review requests...