How can I convince my parents to let me go to the midnight premiere?!?

The ONLY reason my mom won't let me go to the Harry Potter and the Deathly Hallows Part 2 is because she won't drive me, and time is running out to buy tickets, so how can I convince her?! I've wanted to go to this since I started reading the very first book, which was when I was 5. I want to go so bad it isn't even funny. I've never been to a midnight premiere of anything before, so if I could just go to this one my life would be made. I'll even told her I'd pay for my own tickets