If you know how you want your name to stay then why don't you or your grandparents or your dad take you to the social security office? It takes like 15 minutes to get your card to match your birth certificate and they even will give you something temporary until your real one is mailed.
My gramma and dad won't do anything about it because my mom won't do anything about it. I mean, it's only one more year until I can get it taken care of by myself... it's just annoying.
I'd just be patient and not sweat your absentees. Less than 365 days untill you can solve the problem on your own, and it will feel better knowing not only did you accomplish it yourself, but also that you've sorted your misnomer
edit - boourns to sounding like a highschool selfesteem pamphlet.
that could work, but knowing how our government works, coupled with your apparent good luck, you'd probably get hit with tax evasion charges if you did something like that.