Just offering support.
I know here in MO there is a program called Vocational Rehab that will help place someone with any sort of disability into different jobs, and even pay for schooling. My X had mild learning disabilities through school, and they stepped in for him when needed.
Don't worry what the future holds. Relax. Put out a feeler for a high school student to help out with the math, the price will be a lot less. Offer 8-10 per hour and I bet you could find a taker. I know my DD's school has academic lab during their advisory period and after school until 4:00 that will give you individual help. Just find out what's available.
Hugs to you. Slow down, a day at a time. XXX