Became a school bus driver. Quit when the school district was asking me to drive in an unsafe way. (Too fast for my experience level.)
Tried to become a helicopter pilot. The FAA grounded me for life.
Now trying to start a software business with software I wrote alone from scratch. It would be a professional services business, not selling the software, which will be FOSS.
I have a few backup plans if that fails. For example, I've already written a book when I was a teen, but didn't like it, so I deleted it. I'm trying to write another now.
I can only do this because my wife has a job. Thank goodness for her and her patience.