starting over again, again

I have slacked. I have been lazy and hungry and grouchy and achy and I just am not living up to the goals I previously set for myself. Why is it so easy to start off strong, with good intentions and then peeter out? And why is it so easy to take a break for a day or two and then just *not* get back to it??
I started a Nutrition and Motivation class tonight. I am really looking forward to learning all the millions of ways I'm sabotage myself. I am hoping that I'll find ways to boost my energy, and how I can be making better choices for my family. My assignment for the week is to start a journal and get the first 3 pages done. Page 1 - an inspiration page filled with pictures and quotes and a role model. Page 2 - My 3 goals; a weekly goal, 3 month goal and lifetime goal. Page 3 - To start my food journal. Everything I put in my mouth, how much, what time and then to summerize the day with my feelings on the days eating.
I know my eating habits are bad. I don't eat when I should. I generally consume far too few calories for my output. And then I binge on junk. I seriously ate like 3 dozen butter tarts over the holidays just because they were here (and they were delicious) - when a temptation is in the house I feel so out of control and can't stop myself.
So this is it. Let's try to retain some of this knowledge and make it an every day part of life. LIVE WITH INTENTION.