I'm a terrible family member but lack the willpower to punish myself to prove that I'm better than that
What makes you so terrible as a member of your family?
I yell at my family a lot and I rarely hang out with them
Hey that is okay! You can always work on it and improve yourself to be a better family member.
I'm already doing fine, I just can't bring myself to hang out with my other family members that I yell at.
You should try to make yourself better and better regardless of how you think you are already. There are reasons for your yelling, maybe you have a mental illness such as bi-polar? Get it checked out by a physician.