Don't Know What To Do...

If your dad is competent to make decisions for himself, then he is competent to arrange his own care, isn't he?

Set a date when you will either move out or stop "helping".

Folks who are indendent can get on by themselves, yes?

Perhaps if you stop enabling his charade of independence, he will get the help he needs and not cost you your health, both physical and mental.

If your father is competent to take care of himself - then truthfully - you are "propping him up" to be "independent". IS he independent or does he believe he is independent because YOU facilitate that for him? I say this as gently as I know how - and also as someone who is enabling my FIL to do the same exact thing - as long as you are propping him up - AKA enabling him to remain where he is and continue to live as he is by facilitating his life FOR him - HE is not going to change a single thing. There is literally no reason for him to do so.
For a lot of elderly people - when their adult children begin stepping in to do things for them - whether out of love or the their own expectation that they should - they don't recognize that loss of independence. The transition seems so gradual often that they don't realize that they have gone from being independent and able to do so much on their own to being completely dependent on YOU. He may very well think he is much more independent than he actually is because YOU are the one doing so much.
Have you tried NOT doing certain things? What CAN he do for himself? What would happen if you weren't there?

My FIL will still often say "I'll just do it myself" when we mention something that needs to be done (for example - the latest is that a toilet needs to be replaced and even the mostly able-bodied among us have some issues that preclude doing the heavy lifting that is required so we were talking about hiring a plumber and his answer was that HE would replace it...a 300 pound bed bound nearly 100% immobile almost 90 year old man). So frequently the illusion of independence is a hard pill to swallow.

But the reality is that you have to remove you from the equation in order to open that door (in our case we can't get everyone out of the equation yet in order to open the door, we can't get all other parties out of his home yet, so he continues to have someone on site that can always help, so he's not going anywhere). But your reality is that as long as you are there providing him with the assist, he is never forced to do it for himself. As long as you are there being the answer, he never has to figure it out for himself.

What someone did in his healthy, vigorous, well intentioned past, IS HIS HISTORY.

What you are doing in your depleted, depressed CURRENT HISTORY BELONGS TO YOU.

A good efficient honest caregiver NEEDS to be a caregiver to him/her SELF. If they fail THIS critical assignment, they have lost the power and capacity to offer their best to ANYONE ELSE.

If/when you resign, HE WILL BE FURIOUS, but he will learn what HE can do for himself OR WHAT HE MUST HIRE a professional caregiver to do.

So if he CAN make care decisions, he NEEDS the opportunity to do so.

He is NOT too old chronologically to do for himself, but as a PD patient he may be less capable of taking charge that he himself knows. For your welfare, you MUST give him the option to try, then fail or succeed on his own.

Research care resources in his area including part/full time aides, meal services, cleaning services, WHATEVER HE NEEDS TO LIVE WITHIN THE LIMITS OF HIS CONDITION, prepare a portfolio FOR HIS USE, write up your resignation, offer him 6 weeks before you leave, then proceed, no turning back.

He will be potentially livid, vicious, loud, or more. Do not relent. After the dust settles you may in find that his “new life” turns out to be better for you but also for him.

Take a shot. You have virtually nothing to lose, except yourself.

Is your father resisting the home care that VA offers also, because he is independent?

Then I'd say, OK dad, you're independent. Therefore take care of all this by yourself, Dad. Reassess after a couple of days.

This isn't heartless. This is what is expected of people who won't accept the resources out there if they and the law see themselves as completely independent people.

I think you should honor your feelings that you cannot go on. This will not make your father happy, but the truth seems that not much HAS made him happy. Elder years are worthy of us mourning what they mean for us, but what they should not mean is the sacrifice of the life of our children.
I am sorry to sound of late so "tough love" on the forum, but the truth is that not everything can be fixed or has a "happy" solution.
If you need to seek support of a psychologist or Licensed Social Worker trained in life transitions, do so, but embrace that you have met the limitations of what you humanly have to give. Be as gentle as you can in explaining it to your father, and seek placement for him. Absolutely refusing is not an option unless he is physically and mentally well enough to move out and be on his own. Do not expect help from your family. To my mind, their decisions were the RIGHT ones in not taking on his care.
I wish you the best, but you are going to have to embrace being the "bad guy" now. Being the "good guy" has had neither recognition nor love in return. You have a right to your life. Your father has HAD his already.

Help, read what Ann said and do it.

If you break your back, have a heart attack, end up in the hospital, things will change, yes?

Did your dad care for his parents with NO help? Were his parents stubborn and uncooperative.? Did they live as long as he did, with as many infirmities? The answer to all 3 of those in "no".

You cannot change your father's mind, or his behavior. Change yours and make a plan to look eave.

Re-read what you just wrote. What would you say to your best friend if they said that to you?
This situation has obviously been a lifetime in the making. You have been condtioned, trained to wait on your father hand and foot. Not to complain, not to question and not to have your own life.
Time to get yourself together. Stand up for your self, your self worth and being able to enjoy life.
So your father pitches a fit? How is his behavior even remotely adult, responsible or intelligent? It is not. Ok. Walk away, which apparently most of your family has done. I betcha they aren't sick about this, or physically ill, or crying, or losing sleep about your father's self centered behavior. Maybe you could reach out to them, explain that the help you need now is to get out of your toxic situation. I betcha there might be a lot of help offered to you.

Walk away. Care for yourself.

You say you can't go on. Say it to him. Let him blow if that is how he handles things. I suspect he did not single handedly care for both his parents for years. If he did, bless him, but you cannot. He seems to think stubbornness and avoiding problems is a solution, and it is, if you pick up the pieces. Let them lie. The professionals say he is capable of making this decision. Why are you second guessing them?

Girl, 16 years is a LONG time. Most people wouldn’t have made it this far. You need a healthy emancipation.