Physical & Emotional Abuse Support Group
Abuse is a general term for the treatment of someone that causes some kind of harm (to the abused person, to the abusers themselves, or to someone else) that is unlawful or wrongful. No one deserves abuse, period. Abuse can be emotional, physical, or sexual.
But be careful standing up to your mom, okay? I know you're are almost as big as she is - according to what you said - but just be careful. Abusers are unstable.
If she does hit your little sister again you will have to make a decision - and it's probably not going to be an easy one. But be strong.
Is there anyone you can talk to about what's going on? Just to have someone who knows what happens and in the event you needed an escape plan could be there?
I don't know in your situation if there is a right or a wrong answer. You have to do what's best for you and family...just becareful.
GOD Bless - and if you ever need to talk I'm here.
*sending you hugs and healing*