No Cheating February

So the holidays happened, and I got a bit off track in my eating.  I feel so much better when I eat a no dairy, low sugar diet.  It's just hard to get back to that after letting my will-power get flabby over the holidays.  No cheating February seems like a good place to start to strengthen my ability to "just say no" to foods that make me feel like crap (even though they taste oh-so-good). 

 Here's something I've been reflecting on: why do I put things in my body that I know make me feel yucky?  I've come up with some answers, but I'm curious to know if any of you (if there are any readers still out there) have had similar struggles.