my love, there is 4 way
1.she stay and get hurts then understand
2.she talk to me and i make her understand
3.you and your sister, restrict her, force her, and stop her, keep her away, but then she may hate you and after she be free she do worse and very very worse
4.i use Magic or somehow do something with that boy or pizza
now you tell me, which is better, faster, easier?