book in it's complicated

Yesterday my husband attempted to persuade me that I am a great writer and should consider writing more or furthering how I write and start exploring stories or novels. It’s something I have considered but never really felt as though I had enough in me to be able to create a compelling enough storyline that others would be interested in not only starting to read it but also finish reading it as well.
The most amount of writing I do is in places like this where I am sharing my own personal accounts of random things that have happened to me or my feelings I need to be able to get out before I’ll explode. I have extensive experience writing in academia but again, that is different than sitting down and writing a story.
To me, a story implies a work of fiction. He suggested I wrap some of my real life in with the fiction and see where that takes me. This seems like it is something beyond what my brain can handle. I also do not believe that I could just sit down and let a whole story flow out of me. I think that I would need to be some type of planning and preparing - an outline perhaps - before I would be able to actually sit down and write something of substance that makes sense.
I’ve been thinking about it since he said it to me. I don’t really have anything right now. The things that I did have as ways to deal with pain in a cathartic way are currently unavailable to me and so this seems like a plausible suggestion, I’m just scared of my own failings.
I’m about to fall asleep - its 3:00 pm and I can barely keep my eyes open. I clearly won’t be beginning anything right now.