Authors,

I was wondering. How did you know your topic was right when you started your books, either fiction or non-fiction?

Was there an A Ha! moment? Or did you just start writing and everything fell into place after that?

Were you terrified when you started or confident?

I want to start a novel but there's something holding me back and I can't put my finger on it.
Not sure if I'm afraid of wasting so much time on something that could prove a failure or worse yet, not get finished at all.

Any and all thoughts would be appreciated!
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Where I've been lately