It's bloody not fair.?

I have the smallest bedroom. It is a box room. My bro is 17 and he obviously gets the big room. it's not fair. well i know he was born first, but i still need a bigger room. i need to do my homework.. i have a desk. i have a footon. <-- dno HOW yuu spell it. i have a bed *ladder* and i can't move anything. i have cleared it out andd everything. i want a bigger room. don't tell me i should be grateful for what i have, because i am. i just don't want to deal with it until i'm 15. where am i suppost to work? do my coursework when i get to upperschool? NOT in the living room, too noisy.. so not fair. Don't tell me too deal with it either, because i have been dealing with it all my life. we can't convert and they said i could have the loft if we win the lotto BUT WE WON'T. THERE IS HARDLY A CHANCE. :-( JUST HELP ME PLEASE, WHAT CAN I DO...