Your amazing! I believe in you! Stay strong!!! *sending huuugs*
Does your brother qualify for Medicaid insurance?
If you live in the States, we do an abysmal job @ providing health care coverage in contrast to other countries that have adopted universal or single payer coverage. I do sympathize.
Only thing I can think of offhand to generate more income would be to consider taking in a room mate if feasible or ask for financial help from a relative/friend. Once you've earned your degree, hopefully life will become easier financially.
Big respect for all that you're managing currently! You have true grit and one hellofva work ethic.
I wish I could give you a hug. Does it help to hear I agree 100%