People try to be helpful, bless them, but often go about it in the most unintentionally destructive way. Sometimes these are concrete events, like directing your parking job. Others are when people try to cheer you up with platitudes.
Imagining that things could be worse is not only unhelpful, but it trivializes your current feelings, as if you have no right to feel bad. Often it's best just to be there and listen. Cracked has 19 pictofacts on things people do when they're trying to be helpful that end up making the situation worse.