I would draw up an official looking financial plan, what and how much your expenses are, how much you make, where you would like to get to by when, how much it would take to put into effect, etc. and "sell" it to your father (along with a payback plan as part of it). Pretend you are a business. Figure out what your father would like from you and/or what you would like to give him (time, house cleaning help, home-cooked meals occasionally, what?) and get a relationship going other than just one around money.

If you have a shortfall in expenses, point that out and sell it; my husband moved from where he was to near his parents while in college and figured out a roommate-shared housing arrangement but was $50 a month short of making it work but reminded his father that the alternative was his living with his parents His father gave him the $50/month.

Give your father choices (that you are giving him rather than his doing all the deciding), $10,000 now to get you straightened out (and arrange for insurance/medical care, etc.) and you pay him $X/month back for Y years; or $50,000 over the next 5 years for schooling in ______ subject which you start to pay back in 2020 at 4% interest; do some serious/official-looking financial figuring after looking at what you would really like the future to look like. You have to be a participant in what you would like to have happen and work at it at least as hard as you want someone else to help you with it to help you?