Why would you listen to that ugly mean-looking lady on that website? Looks like a nonsense website.
You should read this one instead.
https://www.joyofsatan.org/www.angelfire.com/empire/serpentis666/Satanic_Meditation.html
You can't convince a jehova witness of anything, they are too dumb to listen. Even if you could fly in the air and shoot lightning out from your hands, it still would not convince her of anything. And if you keep trying to convince her, she would just think that you are crazy, and she might tell everyone that you are crazy.
I think you shouldn't talk to her about any of this stuff, she isn't going to listen.