Lies

So today i realize that my STEP sister lies all the time like i am a fool.I got so angry and yelled at her and i see that i do that all the time.But today after yelling at her i caught myself ,apologized and thought those who lie alot its just something in them.No matter what you say or do they will lie. Alot of people who believe in God lie to him....what makes you think they wont lie to you?I'm not a saint but lies are something i was raised not to do.She is too young to do that all the time how many things can a ten year old lie about?But today i learned a lesson rather than hate her or be mean to her i just know how she behaves and ill take this as a lesson ill carry with me for the rest of my life.