Is there funding resources for a parent who is the caregiver for their adult disabled son?

I'm writing this trying to find help for my dad who's my caregiver. Is there any funding resources that I qualify for where I can get funding to pay him for being live in caregiver, transportation to doctor's, etc and everywhere else done by caregiver? Or that'll pay him directly? I'm a 47 year old disabled single father. I'm disabled from several Traumatic Brain Injuries, Chronic Traumatic Encephalopathy, Seizures, Blackouts, Impaired Motor Skills, Impaired Cognitive Skills, Impaired Speech, broken neck, back, and other disabilities. I'm supposed to have someone with me full time because of the seizures, blackouts, weaknesses from minor strokes, and unable to cook, clean, etc. for myself on consistent basis. For the past several years my oldest son (who has ADD, ADHD, PTSD, & Bipolar) that lived with me full time and my dad were my caregivers. I have joint shared legal custody of my youngest two sons who are with me 42%-48% of the time. My oldest son started College & my doctors found out & so my dad is moving in to be my caregiver. I lost everything when I became disabled, my family, my job, my ranch, my businesses, my life savings, all 3 of my son's College Tuition, everything. My oldest son and I had to move in with my dad who was my full time caregiver. And I had to watch as my disabilities caused him to lose everything to. He paid for household expenses, transportation wherever we needed to go, and helped with my other medical expenses which were much more at the time, and that's not including all of the hours of his personal time that was spent taking care of me day and night. For last 4 years since doctors were sure that my oldest son was capable of doing required work, with home health coming in couple times a week, with my dad also coming in during week and providing transportation we've been able to survive. My dad's been spending at least $600-$700 minimum each month to bring me to some of my Specialists. Even though I've been searching, I have been unable to find resources that would either pay him or provide me with funding to pay him. And now that he's going to be my in house full time caregiver again between transportation expenses, daily care expenses, and the hours he works each day helping me survive, stay out of a nursing home, so I can at least spend time with my younger sons and they'll know who there dad is. As said before I've been unable to find any resources just for transportation each month much less for being a full time caregiver. I need help. My disabilities have already cost me and everyone I love everything, and if I had to sit by and watch my dad lose everything again or my son's hurt anymore I won't be able to live with myself. As I said before all of my sons college tuitions had to be spent on my medical expenses so when my oldest son started College this year we've had to struggle trying to find enough money for his tuition. Between Grants and partial scholarships he received we still have $8000-$9000 shortfall that we have to find a way to cover. Then before my next sons I have several years to try to figure out something. Sorry with my brain injuries I got off subject. I have $800-$1000+ in medical expenses each month. There has to be something out there that will either pay my dad directly for expenses to bring me to my Specialists, or provide me with a way to pay him. Likewise there has to be something that will either pay him directly for his expenses and time taking care of me, or provide funding for me to pay him directly. When someone becomes disabled them and their love ones shouldn't have to lose everything they have then and in the future especially when they paid in much more than the required amount. Someone PLEASE point me in the direction of some type of resources that will help me. If there isn't anything out there I hope someone who reads this will fix this situation so that no one else has to suffer through this in the future.