Cheapest path, starting from scratch

[calliemay]

Hello all! Long time lurker, I've really enjoyed perusing all the fantastic info here. I'm looking at starting from scratch, and I'd like advice on the absolute cheapest route to basically any degree. 

I'm 44, with severe chronic health issues. Basically, I'm too disabled to work full time, but not considered disabled enough for government assistance.

Worked for a home builder in purchasing for many years until they crashed in 2008. Finding decent part time work is hard enough, but then every job I tried to apply for had requirements of minimum bachelor's degree, they don't care what subject. It took more than 2 years for me to find a job, without kind relatives I would've been living under a bridge.
I've been at current job ever since, company is just me and my boss. I have a lot of downtime, I typically read about 200 books a year, plus coursera courses because I love to learn.
Boss is getting old, I'm worried when he dies I'll be out of work again, without even a reference. So I'd like to use my time towards earning a degree instead of other reading and non credit courses, but I'm barely making ends meet so money is a huge issue.
So. Please give me ideas on the absolute cheapest paths. I know I need to apply to fafsa. In Georgia, so I can join POAG. CLEP testing centers are open here and I'm fully vax'd, so modern states is an option, although with my health I'm still nervous.
Saylor, OnlineDegree.com, Sophia, Study.com.
Had brain surgery a few years ago and I swear they accidentally removed the math section because maths used to be easy and now I look at the CLEP practice and the algebra, trig, and calc may as well be Klingon. ? So that's going to be a challenge. Brain fog, balance issues, and tinnitus also make learning extra fun.
Looking at the big three, it gets confusing with various fees and tuition.  Or would another school be a better option?
About to begin a TESOL professional certificate course from Arizona State University, but I don't expect credit for that. I'm hoping for a TESL job online, but most will again require a bachelor's in SOMETHING. Teaching related would be great, but not vital.
Apologies for being far too wordy. Side effect of newest meds.
TLDR; zero credits, cheapest path to any degree, many thanks.