lol, that comic was funny!!! But yeah don't worry about any of that stuff later, just be aware that you want to be doing an RPG type game so maybe ask what you should consider making next.
I say to continue with the tutorials, maybe look at the killer games programming book
(freely available on line), and also have a look at the path to games development
Another tutorial to take is the space invaders game tutorial
, which is great because it walks you through writing a space invaders game. Unfortunately it is not aimed at "teaching" programming, so some people will actually read this with no Java programming experience and be able to grasp Java - because that is how they learn. Others will just copy and paste the code without learning anything, other than a few keywords. So depending on how you learn it might be best to get yourself some experience with stuff.
Let us know where you are at and we can guide you; and maybe stop starting so many new threads. You have created a good number of them, when all you need is one thread about guiding you through your initial stage of learning.