What's interesting about PF, of course, is that she just didn't do very much writing earlier on. Glad to hear you have made some progress!
> The other answer given is that she wasn’t, in fact, such a late starter. Critics point to her childhood stories, anonymous reviews for the Times Literary Supplement, her probable contributions to Desmond’s history of the Irish Guards, and the literary magazine she and Desmond ran together when the children were little. There were also four short stories she wrote earlier in life: two as a young child, two in the 1950s when she was a mother. (Fitzgerald wrote very few short stories overall.)
I would guess that were I to die today, there would be very little evidence that I wrote anything before 2014.
I’d would say that’s very little writing before your first novel.