The Few, the Proud, the Stubborn
First of all, congratulations to Leaguer Jeanne Stein for the release of the Anna Strong #7 book, Crossroads . I've known Jeanne for years a long time, and I've seen her persevere in the frustrating and tortuous path to get published. She came close to giving up, and even when she strapped herself back to the yoke, it still took a while before anything positive happened. Jeanne exemplified the supreme toughness it takes to make it was a writer.
If you're a young American male, the standard for toughness is a Navy SEAL. But if you think it's tough to be a SEAL, then try being a published writer, specifically a novelist. It's hard to compare success rates, since the weeding-out process for SEALs and writers starts early. So I'm guessing for SEALs, maybe 10% of the wannabes actually get to wear the coveted Trident insignia.
10%! That's gravy compared to being a novelist. Literary agents get hundreds of queries a week. Maybe they respond...