Who says…

… that I can’t write a novel when my starting point is a psychological concept and not much else? It’s an idea that’s powerful, has personal significance for me and probably also for others. And yes, I will need to do one hell of a lot of work to flesh it out, but the important thing is to start from somewhere!

Encouragement

From NeilGaiman.com:

Being a writer is a very peculiar sort of a job: it’s always you versus a blank sheet of paper (or a blank screen) and quite often the blank piece of paper wins. It has no job security of any kind, and depends mostly on whether or not you can, like Scheherazade, tell the stories each night that’ll keep you alive until tomorrow. There are undoubtedly hundreds of easier, less stressful, more straightforward jobs in the world. Personally, I can’t think of anything else I’d rather do, but that’s me.

If you want to be a writer, write. You may have to get a day job to keep body and soul together (I cheated, and got a writing job, or lots of them, to feed me and pay the rent). If you aren’t going to be a writer, then go and be something else. It’s not a god-given calling. There’s nothing holy or magic about it. It’s a craft that mostly involves a lot of work, most of it spent sitting making stuff up and writing it down, and trying to make what you have made up and written down somehow better.