starting over

For me, it is all about motivation.
I have been going through a bunch of changes recently, quitting smoking, eating better, and working out. I can tell you for certain that there was (and still is) many times where I want to relapse in one way or another, but every time I feel this way I think of my motivation (in my case, my wife, and to be better for her) and I get up and do what I need to do.
My advice to you is finding the real reason you are trying to change. Once you have that, use it as motivation on the days you need the extra push to keep going.

Best of Luck

I completely agree with chipvb.

I started losing weight last summer/fall for my wedding in July 2011, and then I just fell off the bandwagon as the holidays approached. I found it really hard to get motivated again, and ended up regaining 10 of the 30 lb I had lost. I tried and tried to get motivated again, but I just could not do it.

Finally, I realized it wasn't just about losing weight for the wedding, but it was about feeling better about myself and being healthy. My father and his family are riddled with health issues, everything from diabetes to heart disease, and most of them had poor diets, smoked, and didn't exercise. Many people on that side of my family died before they even hit 50 or 60 years old... and I do not want to be like that.

The other hump I had to get over was the fact that this is not about losing weight fast. As much as I would like to be 130 lb for my wedding, that may not happen... and that's no reason to not be motivated. This is about lifestyle change and happiness, and you aren't going to achieve that overnight. I am now looking at this as an opportunity to begin this new phase of my life in the most healthy way possible rather than just trying to be skinny for my wedding.