picking myself up and continuing on...

I have chronic depression and have food issues wrapped up in it also. I don't think I would ever have done anything about it if my health wasn't rapidly declining too. Some things that have really worked for me are to make myself leave the house if I am just starting to feel down and feeling cravings (although this doesn't work at 3 a.m., unfortunately); and get rid of most or all of the problem foods - if it's not available to you, you can't eat it. Of course, some days I make bad decisions, but I try not to beat myself up about it too much, and then make a plan to make up for my mistake - get in more exercise for the week, or cut down calories sharply one day. You absolutely CAN lose 100 or more lbs if you want to. It's probably going to take a couple of years, but then it probably took years to put it on. You just need to stick with it. Take it one day at a time.