I Have A Disability But I Am Not Disabled

I am deaf in my left ear and have under normal hearing in my right. My hearing aid got lost and this year I had a slight decline in what's left, which dropped my hearing in my only ear to below normal levels of what ppl can hear.
It's become stressful at work. And life in general. I'm exhausted from the extra mental work daily trying to listen to people and pay attention to my environment.
My son has a speech problem and is starting therapy to correct it in a week, but he n I both get frustrated with bad communication. I wish I could have a normal conversation with my son.
At work, I'm a caregiver for elderly clients, and I travel to their homes. Im realizing how much of an extra strain my job is with or without the hearing aid. Many of my clients talk soft, and I usually have to be three feet from someone with them facing me to avoid not hearing them, but these seniors I have to be super close, repeatedly ask, "what?" And three of my clients complain to me about my hearing, getting frustrated themselves.
I'm super stressed suffering fatigue and even headaches with much anxiety about going to work or finding a different job.