I'm mad at my family
Why would you be so mad at your family?
My family is always upsetting me and causing me issues.
Your family has caused you a lot of anguish, but normally people have reasons behind it. Release that unknown anger with something else positively passionate you feel, otherwise it will destroy you and them both. Being with no family is a lonely experience.
I'm fine, I'm done with them.
I think it might help to find out what triggers the anger. It might not even be them at all but it could all be in your head. It is wrong to take things out on them if they haven't done anything upsetting.