I'm really doing the best that I can, I'm a full time student trying to go get into law school, and I have no family or relatives that care to help out or be around, except when they try to give "useful" advice.
My grandmother refuses home help, when the doctor forces it or after a fall, she decides to force me to cancel, and if i don't it becomes days full of emotional blackmail, and negativity. She even threatens to say that I hurt her so she gets her way. I am generally very meek and mild with her, but these last couple of days I just walk away shaking my head. It has ruined my close relationships with family and friends, and has started to cause problems with my own personal health. Most of the time I can't find anyone to listen or understand what's going on, either because they're around my age and don't know how to respond, or they think that I can just walk away-which isn't the case.
If Gram really needs someone to take care of her (and I assume she does) then some other arrangements HAVE to be made, whether she "refuses" in-home help or not. Slavery was abolished a long time ago in this country, and indentured servants are no longer allowed, either.
No one can force you to do the work doctor's have ordered Gram to have done for her.
I assume you love Gram very much and this is one reason you have tried to put up with this non-normal situation for so long. So you are not going to turn you back on her and leave her stranded. But as gladimhere suggests you can get an appropriate agency involved. Area Agency on Aging is one and perhaps the place to start. Perhaps they can help you get a social worker to help you with this situation. Other possibilities are Human Services in her county and Adult Protective Services.
Are you living with Gram? Do you have the means to move out (once Gram's care is settled?)
You have to make a choice, either your Grandmother putting your life dream to go to law school on hold for the next ten years or your Grandmother accepting help at home while you are in school. You cannot attend law school and also do caregiving, impossible to due both.