Do you have access to any healthcare services?

A good CNA can help you figure out how to manage hygiene as long as you have some degree of upper body mobility. I mean, obviously, an occupational therapist or physical therapist is going to be better, and be able to offer a wider range of options, but without a way to pay for those, it can be out of reach for self pay. But an hour or two of CNA time is usually within budgetary reach. Other pros can help too, but again, they'd be more expensive.

You can sometimes find a local disability support group, and the difficulty with tasks like bathing, brushing teeth, etc is a pretty common topic. You don't automatically get trained advice, but you do get practical tips from people that may well be better.