I got a lot happier with my pants once I started using my sewing machine to take 3-4 inches out of the waist of every pair. Of course, you feel awful when you've just spent money buying pants new and then you immediately cut them up, but at least they fit.

On the plus side, your build is actually significantly healthier than it would be if your weight were distributed differently. Subcutaneous (thigh, butt, etc) fat isn't actually bad for you like stomach fat is.