Don't you think you need to be an accomplished artist before you try directing creative people?
Go get a BFA in the field you want to direct and see if you are any good at it. Nobody in their right mind will put you in right at the top without any experience.
I see you are going to Tokyo. That's a great choice. There is really wonderful design work being done there. (How is your Japanese?)
The best approach, in my opinion, is to get a BFA.