Replying to Ski boots

Sup, i bough a pair of salomon kaid, the biggest size i could find since my feet is like 9.5/10 (US size) (43.5/44 in swedish size) according to this website http://www.northerner.com/articles/SwedishSnus-292/Shoesize%20converter-12333/SHOP-0/ .
ANYWAYS i dont remember wich size i bough the kaids in and their at my dads appartement so ...
Last season i bough them and they felt way to big for my foot, but since my feet grows excessively fast i bough them so i could use them next season! So, i tested them for about a month ago and they felt way to small! My toes was really connecting (pretty hard) at the edge of the boot.
Can i still ski with them this winter you think? It hurts a little when i stand up right but with a lil front weight and bend knees it feels a little better.
Is there any way to make my next boot buy more "future safe" since i dont want to spend 300-500 bucks each year buying new boots! But hopefully my feet will stop growing ! :@