Dream project: RTF

I'm finally working on the project I've been thinking about for nearly...oh about 5 years. I've had this project on my mind since college first started. RTF, I'm not going to tell you the title so you can steal it, has been a cornerstone in my life. What's great about the paper I'm writing is that it helps to really nail down some key parts like character names, locations, and what I really want out of a game like this. I want this to be my masterpiece, my Lord of the Rings, my Dark Tower, my Discworld, my Cthulhu Mythos! The problem is that I don't know if I'm mature enough or ready to make the story. How should I put this? I realize that there is merit in being experienced enough to write something at the magnitude that I want but I also know that the...inexperience of a writer can be a benefit as well. I look at how Stephen King's work, which I still enjoy, has degraded to a point. Maybe "degraded" isn't the right word. Stephen King seems to be leaning away from the supernatural rawness that I enjoyed in his earlier works like "Pet Semetary" and it doesn't strike the usual terror in me. I think he may be so used to the process that he may have lost some of his mojo, so to speak. That's not to say that he's totally lost it, "N." was a fantastic short story. I've heard that every writer has only one story but they tell it several different ways. I can see that to a certain extent, at least I can see the connections between their stories. I want my story to wow people, to offer a new (or just my own, I'm sure someone has already said what I have to say in some format) point of perspective. I hope to figure this out soon. Actually, this is why the story I made for the game is actually a prequel. The story that's been with me is not the story in my game. But I think that I can use this as practice, and as a training level/flash back episode. I can make a game out of this or a story, kind of reminds me of how the Halo universe has games and books. And games based off of books!