I can understand your ordeal. It is not easy to change your whole lifestyle even if you know it is for the better for you.
For me, I just decided I would not let myself continue down the track I was on. I was morbidly obese, had high blood pressure, elevated blood sugar levels and could barely walk from room to room.
You have to do this for yourself. You have to find the courage inside yourself to believe in yourself and love yourself. You can do this. Make small changes. For me, and a lot of others, counting calories is a great way to go. If you decide to use this method, find a site like fitday.com or sparkpeople.com and be sure to count EVERY morsel you take in. It is imperative that you don't leave anything out.
As far as exercise, I started out walking in place. I gradually moved on to Leslis Sansone DVDs. Now I use Jillian Michaels, The Biggest Loser and my Wii, not all at once, just depends on how I am feeling that day

. My point is, it doesn't happen overnight. You don't go from eating whatever you want to eating healthier overnight. You don't go from being sedentary to running marathons overnight.
When you feel like going off track, remind yourself why you are dolng this. Remind yourself that only YOU can control if you succeed or fail. Come here and read the inspirational goal and mini goal stories. Play a game. Go for a walk. Have a relaxing bath. Do anything but make the choice to not change your life.
Good luck with your goals.
Hugs
Michelle