Hi, Sinking Feeling! I think many of us vary a bit on how we feel about ourselves and on insight into our behaviors. It's possible we might sometimes get irrational in our personal judgments. But also putting ourselves down and such negative self-viewing could be a sign of depression itself. I am hesistant to say we are ever "delusional" in this way.
You might want to check out this forum:
http://forums.psychcentral.com/steps...r-self-esteem/.