[Nyororin]

Start worrying about saving the money up once you can work. If you`re really determined, save any money your receive up until then - birthday money, Christmas money, etc. As you want to plan for this now and not later, you must be really determined, right? Just don`t buy anything, get a bank account if you don`t already have one, and put all the money in there. Once you can work in some capacity, work, save, and repeat.

Any other advice I can`t really help you with. Between now and then things will have changed so much that even if I tried it would no longer be applicable.
But one thing that will *never* change is the need for money. So do what you can do now and save every tiny bit.