No, I'm not a published author, but I am a writer. If you want to write a novel, go for it. But be sure you finish it. Not many aspiring authors can say that they've completed a novel--published or unpublished. It's a great accomplishment--one that takes lots of effort. I can't tell you nearly everything about writing, so you need to do research. Either here on YahooAnswers or all over the web. But your question: Finding Inspiration.
There are so many things to write about. Take a walk. But what could happen on that walk? You could overhear a stranger, plotting death. Who's death? A strangers, or your best friends? Why do they want to kill them? There's always a reason. The worst villians are people who kill for the sake of killing. What made them enjoy killing? Think of a nomal scenario, one that happens everyday, and give it a twist. And remember, if you don't have fun writing, your readers won't have fun reading.
Good luck! =)