It takes a lot of time, I recommend starting with something small. Like 1 map story, just you get to know how it feels like to make a game. I watched hours of youtube videos about RPG maker to learn the program, I recommend doing that. They teach you a lot.
Just means a smaller story, creating art for maps takes a lot of time, if you make a small game with maybe 1 town map I would think that's a good place to try how making games feels like.
