Need help with disability shower installation

Hey y'all. So I have Multiple Sclerosis. It's made me unavailable to walk. I can't see or speak well. My cerebellum is shrinking so I have an unsteady gait. Brandon don't work as much anymore due to me needing constant help. I only have a bathtub. I fall all the time. I need a different type of shower one for disabled people. The falling in and out of our bathtub is taking a toll. I've tried getting medical help. No good insurance I can afford for what I have going on. I need grab bars. I know it's a lot to ask but I have to. I need help. If you can help please help.