I say learn to sketch before anything else. Nothing too technical (don't waste your time learning serious drawing techniques how to do shading, textures, etc.), but basically just how to place lines on scratch paper with a pencil in order to create figures with expressions and backgrounds. That way, you have a way to express your ideas visually in a way where others can easily understand.
As a creative person, this is the most useful skill you can have, even if you can't draw. Unlike real drawing, which requires you to understand a lot about lighting (shadows, reflection, contrast), texture, rhythm, perspective, etc., along with technical skills like shading, blending, and texturing, you just want to work on having enough hand-eye coordination to sketch out simple forms, and that's easy enough with practice.
You can then take that ability and use it to quickly storyboard sequences, plan interfaces like menus and battle systems, and create world maps in sketchbooks that you can then scan and pass on to artists, coders, and other designers to create materials with.
It's a basic skill that everyone from film directors and script writers to graphic designers should have.
The next tip I'll give you is that once you're able to flesh out your ideas and you've planned out things like interfaces, scenes, locations, dungeons, puzzles, plot, and started writing a script, consider getting rid of all the Chrono-related elements to make it truly original, go to a forum with people who like to do spriting and get a 2D artist who wants lots of practice, then go to a forum with lots of RPG Maker nuts who can't finish their own projects and pick up a coder who also wants some serious practice.
Then all that has to happen is the artist turns your sketches into real artwork and graphic elements, and the coder makes them move around and work, while you finish up the script.
