From the vantage point of this respite I'm having from depression, thanks to therapy, medication and love; I can describe a bit how it felt. Not only does it not help knowing that you have 'no reason to be depressed', that knowledge is part of the stereophonic,self-hating dialogue that keeps you depressed. Guilt and depression like to hang out together, but the truth is that depression doesn't care about success. So don't be too hard on the successful depressed, their suffering is likely as real as anybody's.