Hey there -
We have a great forum here for people struggling with Depression, so you might want to check that out, for starters.
In terms of plans, have you ever considered calorie counting? It's pretty basic, but has worked for a lot of people. You might look at the Calorie Counters forum, and a lot of our other forums by plan, to get an idea of what's out there.
Look around, find a spot or two that seems fun, and get to posting...can't wait to get to know you better!