wedding dress blues

I found the perfect wedding dress for $550.. but it is way out of my budget and I'm heartbroken. I'm starting to think I'll never find a dress for my price range.  I have to pay for the dress myself (which I'm sure most people do?) idk cuz I'm not good at this wedding planning thing lol. Anyone have any ideas on what I can do? Like how could I go about finding the dress somewhere else maybe for way less? Probably a long shot I know.