For you petite women <5'2 are you confident in your ability to defend self if attacked by a 6'0 built woman?

Honestly i'm a pretty big woman, i'm on my diet still and lost 10 pounds so far. Even when i'm skinny i still know i can kick someones butt for defending myself. I'm not going to let someone bigger than me push me around. Ill kill them if i had to.