[Nyororin]

Let me get this straight...

You`re 15.

You want to get a "Fine arts degree, a graphic design degree, a teaching degree, and an English major" BEFORE you come to Japan.

You have not (or only just started) saving up for these extra degrees - which you say your family has not planned for (therefore will likely not be interested in paying for.) Not to mention money for an actual trip to Japan.

And yet, you`re worried about the price of *groceries* here?

No offense, but exactly how long do you think it takes to get "degrees" in all of these studies? Remember, most university students manage one degree (and maybe a minor in something else) in a 4 year period.
I would say add a year or two to that for every extra degree - especially as you seem to like saying you`re a bit lazy and have a short attention span.

In other words, the *current* prices in Japan are really the least of your concerns at this point. You should start looking at these things when you can finally see the end of all those loose strings of dreams and desires. Best is around a year or so before you plan to attempt a trip.

Even if I were to answer all your questions, you have at least 5 more years to go before you would make the trip. By then you`d have either forgotten or things will have changed.