Believe me, I definitely have "why bother" thoughts, so I know the place they are coming from all too well. But I don't think they are productive. I have always had more success sticking to a my food and exercise plan when I'm taking good care of myself in other ways. It all comes from the same belief that I'm worth the trouble and the time it takes. That belief doesn't come from just telling myself that -- it comes from acting as if. Trying to wait until the negative thoughts go away to give myself permission to live doesn't seem like a great plan. That's why I always loved Stacy London on What Not to Wear -- she gave women permission to dress for the body they had.
Last time I got to my weight goal, I bought clothes I liked in the size I was as I was going down the scale. It was expensive and it also meant I spent a lot of time cleaning out my closet and taking stuff to Goodwill, on the way down and on the way back up, which is why I think Gwynnie Bee is such a genius concept. I have been stuck for a long time at the same weight and I think part of the problem is that I was waiting to get new clothes until I lost the weight, and I was feeling frumpy and ugly (my most "comfortable" outfit would make Stacy faint, and I was wearing it all too often), which kept me stuck there.
My grandmother, who always had a great sense of style, used to ask us, "Do you think you look good?" Sometimes it was a pointed question, if we were wearing jeans and t-shirts, but usually, it meant that if you thought you looked good, that was all that matters. I don't always think I look good, but I'm trying. I think Grandma would approve.