Stroke Past-Future Hospital and Rehab Bills

USMC vet, disabled on disability, med care only, right brain stroke loss left side use, was in hospital 8 weeks 2 in icu 6 in gen care, wheelchair bound, home bound, have done rehab 3 times 21 days each, med care only covers 21 days at time 80%, need more rehab. Cant afford extra med ins, stroke history prems impossable to afford on disability.  Have been trying to pay off hospital bills 20% not covered by med care but what can pay monthly on my disability cant seem to gain ground, really dont like asking, with all this covid stuff going on I know a lot of other folks are having problems, but I dont think I have any other options, If theres any folks out there that can help me out,  It would be much appreciated