I guess I do have that mental block of not feeling attractive. At least, it may be a mental block; but how would I know if I'm just... not actually attractive? (This is a problem for me. I want hard data and I don't see how to get it. Social norms explicitly forbid anyone telling you that you are ugly, even if you are.)

If it is a delusion, where does it come from? And how does one get rid of it?