I want to go to WDW more than anything!!!!!?

Okay, so I've never been to WDW or Disneyland. I live in Nc. I am 16. And I'm homeschooled. I am obsessed with Disney, and I want to go to WDW soooooooo bad! But I have EXTREMELY conservative parents, and 8 siblings. And I just get SOOOO jealous when I hear about people who go on their annual trips, or take their toddlers who won't even remember. How can I convince my parents to let me go? Like, with a family friend or aunt or someone? I sure as hell wouldn't want to go with all 8 siblings in tow. But like, my parents buy them stuff all the time, simply because they'll have tantrums otherwise. Meanwhile, whenever I ask for something, they get all pissed. My mom makes me feel like a jerk just asking for a shirt or something. And they're also VERY protective. I can't even take a walk around my neighborhood without someone from my family going with me!!! It drives me crazy!!! And I know for a fact that my little siblings are going to be MUCH more spoiled than me at this age, (they already are!) and they'll grow up without having to take care of little bratty siblings. I don't even get to go to the mall! Like, when I was little, I'd NEVER ask my parents for stuff in the store! And at baseball games, I just took for granted that I'd NEVER taste cotton candy. And yet, my little sister asks for it, and they buy it for her in a heartbeat! Just the other day, my mom bought some things for my little sisters as a surprise, and they cried because they 'didn't like them!', when I asked my mom about this whole thing, she's just like, 'well, I buy you food you like, don't I?'. and just leaves it at that. GAHHHHHHHHH And the one thing I want the most is to just go to WDW!!!! (which, btw, my mom HAS been to. but she's not obsessed w/ disney like I am.). Why are my parents like this??? Why is life so unfair??? (btw, sorry this turned into a rant.:P)