What if I'm really tired of life right now and I can't stand being near my family anymore?
That's sad. Is it because of events in the past?
Yes, my father was physically abusive to me so I don't want to be around him.
I'm so sorry that your father treated you in such a horrible way. It's completely reasonable that you avoid him, in fact, I would suggest doing just that. It's important to protect yourself both physically and  mentally.
Screw them, I don't care about them anymore.
And you don't have to care about them anymore if you don't want to. Those people even if they are your family are dangerous and you should do your best to be safe.