<human>: So, I'm 21 and graduating college this May. I'm doing an internship over the summer and volunteering with Americorps NCCC next year. Both of these programs pay nothing. After these programs, I plan on moving somewhere on the east coast and looking for permanent work.

The issue is my father. He's always lived paycheck to paycheck. He lost his well paying job tow years ago and has been really struggling since. He's makes about 70% of his old salary, but, since he could barely pay his bills then, he really can't pay them now. My grandma has been helping him out, but she's been diagnosed with cancer and has to retire. Therefore, my father is all on his own now.

My grandmother is telling me I need to move back home after my projects and help out my dad. The issue is that I don't think that is fair to me in the slightest. I have paid my way through college by working 3 jobs and pay all my own bills (including health insurance). I feel that I owe nothing to my dad financially since he has not helped me financially since I was 17. I feel that I have my own life to live and need to pay my own mortgage first instead of his. Frankly, I do not even think I could afford to help him and pay rent at my own place, and there is no way I can live with him and my stepmom (for my own mental health).

So, what should I do? Am I justified in not wanting to help and wanting him to downsize and get his own finances in line? Or should I suck it up and not move to the east coast where I've always wanted to live and try to find a job in their town?

Could you distill the essence of the text into 1-3 sentences?
<bot>: My dad has been living out of his means and can no longer afford it, but I don't want to help.