^^ We actually did have an au pair whom we helped to attend community college. We urged her to apply to the U.S. Diversity Visa Lottery, and she actually got chosen! We were her sponsors when she immigrated. She lived w us for a year while we helped her get on her feet and become independent.
Here’s info on the U.S. Diversity Visa Lottery:
https://travel.state.gov/content/visas/en/immigrate/diversity-visa/entry.html
You’ve got nothing to lose by applying. You can apply from overseas.