Need encouragement

Hi all. I need some encouragement in this weight loss thing. I need to lose a significan amount (>60 pounds), and I'm struggling to get in a groove. I do fairly well with exercise, usually working out 4-5 days a week. I do the elliptical for about 45 minutes, and I sometimes throw in some walk/jog intervals. Next week I will start doing weights 2 times a week with a friend. The part that is really hard for me is the eating. I just overeat...and I over eat everything. It's emotional...I eat when I'm bored, happy, sad, tired, excited, and food is something I think about often. I love salty/sweet (think popcorn, m&ms or pringles, ice cream). I have started to log my food intake in my fitness pal. While it has been extremely eye opening, I feel like it is incredibly daunting to go from eating mostly junk to eating mostly healthy foods. I can do it for a short while, but I struggle with being consistent over the long term. I am pre-diabetic and I was insulin-dependent diabetic with both of my pregnancies. I feel like the best solution is to stop eating sugar...to me sugar is like I imagine crack is to some people. I crave it, I love it, I hate it, I need it. I have done things before where I don't have any sugar at all for a few weeks, and amazingly, by the end I don't crave sugar at all...I crave the healthy stuff. Now I'm so into this awful pattern of eating crap, that I can barely go a day without sugar. To give myself some extra motivation, I submitted some blog entries to the company I work for, and I will be contributing to a blog over the next year that will follow my journey to wellness. (I don't have a blog, kind of submitted the entries on a whim and now am scared to death). I think it may help to have accountability partners...how would I go about finding some friends on here that might be on a similar journey?