Constantly saying Help Me please

I am a daughter with autism age 50 and live with my elderly father age 85. He keeps repeating the phrase Help ME please, very insistently, and then switches to Help me Jesus or praying the Hail Mary. He has a caregiver in the morning and my brother comes in the evening for a small amount of time. I’m left alone to hear him crying out. When I ask him what’s wrong or what does he want he says “it’s just something I say.” And acts dismissive towards it. But when he’s saying it he’s saying it in a crying, pleading, despairing, emotionally begging way and it is very disturbing for me to hear it since he was my father who I depended on who was strong and giving to me, it is very triggering to lose him like this, I feel it is like listening to him beg off the side of my boat, treading water and just staying afloat and keeping his head above water and begging for someone to help. I can’t stand it anymore. It’s not simply a phrase as when I ask him he is making it out to be, it’s a true begging, pleading, emotional call and it’s very extremely triggering to me. The caregiver is only here in the morning and I don’t know what to do for him. I just lost my mom in April which was 9 months ago and she had Parkinson’s and couldn’t walk and that took everything I had out of me to give her everything I had as far as caregiving is concerned. Now I feel erased, wiped out, I feel emotionally dead and numb. 3 months after mom died dad began sleeping a whole lot and frequently deciding to sleep versus to eat lunch. He’s only awake a few hours a day and spends the rest of his time asleep. I try to cook him healthy foods but he only eats whatever the caregiver and I serve him like a mouse, half the time he says he isn’t hungry or he only eats 1/2 cup of food then says he’s full. He did not want to do physical therapy because he has a fracture in his back that makes it painful to do physical therapy, subsequently his muscles have gotten weaker. He has loose bowel movements/“accidents” such that he decided not to attend his own wife’s funeral, for fear of not being able to get to bathroom on time. Sister takes him to all his doctor appointments and dentist appointments. Brother brings him a meal in the evening. Caregiver fixes one egg, 1/2 packet of grits, one toast with jam, coffee with cream, every morning. Like I said he eats barely nothing and I’m only satisfied and happy if I see that he has eaten the whole meal! I cook him vegetables and fish and other things. But other than that he sleeps and wakes and sleeps and wakes and calls out and seems to be desperate and crying out for help. Early on I had asked my brother to pay for a daily or two or three times a week exercise person to visit dad so he wouldn’t get bed bound but brother said “no bc he is an old man”. So we did get a physical therapist for about two months thru the hospital but father didn’t want to do the exercises bc of back pain, I knew what the future would hold for him if he didnt do it. I’m in New Orleans and this is where I grew up with my parents and siblings. Still living in the same house. Surrounded by memories all around me, I have autism and I’m isolated and alone. I never got help for having autism bc I just found out I had autism two years ago. I’m still trying to deal with the loss of my mother and so I can’t even begin to emotionally confront or process or deal with the loss of my father. I also lost my cat who I had to put to sleep in January. He was my best friend and got me through a lot of trauma. Now every since mom died I began having severe health issues that make me unable to be a caregiver for my dad either physically or emotionally. Caregivers just prepare food and then sit. They help him to the commode, give him bed baths. They are only here for four hours in the morning. Then brother comes at 445 for 20 minutes to give dad his evening meal and pills then quickly rushes away. I’m left isolated alone and triggered by hearing dads crying out. I can hear it from one end of house to the other. But his voice has grown weaker. I want to ask anyone who can give help, Please Help Me!, but for myself, because without me getting help for myself then I can’t be of help to him.