Seems unlikely she’d make more than 40k at most, to start. But she could probably get there in a couple years.

I second what others have said about going after the her ex for child support. Another thing to consider is a degree through BYU Pathways. My wife didn’t have a degree and wanted to jump into the job market with our youngest in high school. She got an Accounting certificate (took about six months) and it helped her to land a bookkeeper role. Pathways is a great program, online and super affordable. Certificates and Degrees are through Ensign College and BYUI