Not a stupid mistake...you didn't know any better. Now you know. Unfortunately there will always be dishonest people out there that are willing to take advantage of those who do not know any better. Next go around, it'd be a really good idea to go to a reputable established breeder to seek out exactly what you want. If red is what you want, I would highly recommend Kevin Marter, or Kara & Ryan Norris. Both have been selectively breeding for beautiful red animals for a long time. I hope you still enjoy the snake you have, even just as a pet with a great temperament.