Urgently need advice on how to talk finances.

Help! Been living with Dad 8 yr. After going from Penthouse to poorhouse and homeless due to extended illness. Got my disability, repaid Dad & contribute every mo. to household checking account in both our names. Dad contributes his $938 SS. I deposit $1K (varies). I pay directly for my two dogs' expenses and my own personal expenses. Dad has Medicaid but I have Medicare Advantage and have to pay co-pays for specialist plus purchase prescriptions that are non formulary. Household account pays for all household, yard, car (we own together) + unexpected expenses such as the hurricane, car repairs. Despite my superpower of bargaining (Dad calls me Private Benjamin), we were forced to take out a reverse mortgage and only have $11,000 left in the credit line. We withdraw from $1000 to $1500 monthly. When I turned to cousins my dad helped in their early years and who took me in when I was homeless, told me to "create a budget and live within it," which does not fit our circumstances. I have No family member who contributes, and my sister is a vindictive skinflint. when she and dad go out for a modest breakfast or lunch, she makes dad pay for his meal. I'm looking and thinking of ways to bring in more money, like an equity loan, because dad does not want to sell the house and hopes to die in this house. it would break his heart and mine if if we were forced to sell. The burden of preparing the house would fall to me. dad would be forced to move in with my sister and I would be homeless unless I could find a Golden Girls type situation where several of us pool our resources. We have $15,000 in credit card debt, Half of which is at 0% interest. We were scammed after the hurricane and also had a car accident and repair which ran up thousands of dollars in bills. Despite our best efforts to prove that the free inspection and triage promised by this contractor who put a lien on Dad's house, dad was forced to pay $1,500 in settlement. Fraud police said contract was Ironclad that Dad signed and that since he and I seem so alert, no judge would find in our favor even though I was hurt and on pain meds that kept me bedridden and dad was traumatized after staying in a shelter. Dad still has life insurance, which he considers his personal money. We requested updated statements, an estimate $25,000. I'm terrified dad will blame me even though these were household expenses and often purchases he asked me to make. We live frugally and never go out to eat or to any show or event. My disability is partly due to severe anxiety and depression for which I take prescriptions. Whenever Dad and I talked about finances, He says nasty and hurtful things. He's expecting me to type out a financial sheet, and I'm not only terrified at his possible response but if he shares it with my sister, this will become a nightmare. I've talked to my sister about how dad is a bit of a spendthrift, and she knows this to be true, but she hates me and has always been jealous of me. I'm terrified and desperate. That's still too sharp for me to try to skip over any figures. He no longer uses the computer and when he tries he claims I changed the password, no I haven't. He always blames Electronics like his headset and TV when they don't work even though it's almost always something he did that I fix. please note my dad has always loved me and I've been his favorite, and he truly appreciates all the hard work I've done including creating a beautiful butterfly garden that has enhanced our joy and the value of the house if we sell it. There is $67,000 in equity in the house, but that will go down to $65,500-$6K after August. Please help me to prepare a document