I don't want anything more to do with my father
What caused you to want to cut off your father?
He never cared about my life (he made me pay for my own education)
Family or not, I say be rid of the people who drag us down. I support your decision fully.
He's never even showed up once for my graduation. He said he's too busy to come and he is also broke.
I am so sorry you father treated you that way. Set your boundaries and stick to them, you don't need people like that bringing you down.