Read a book and learn an easy skill.
Like even just Wordpress development or SEO or Twitter promotion, then start a little side hustle consulting for people.
Start small and as time goes by you'll get better at it and get bigger clients.
Now you got a mainstream "cover" so when people say what do you do, well you own an agency. And by the time your daughter graduates from high school you'll have an amazing business you can hand off to her.
I know of a few people who make megabucks just doing Pinterest consulting for businesses, so it doesnt really matter what you pick as long as you start somewhere and keep forward.