Why do "bad" kids always get attention? should i hate my sister?

I know from experience that its hard to deal with parents giving their full attention to the worst of the bunch and ignoring the rest. It's hard to deal with. I strongly suggest that you pray for your sister. Continue to do right by your parents. Set an example for your younger sister. Make sure she knows she loved. Learn from your sisters mistakes. You shouldn't hate her. I know its difficult not to feel that way. The power of love is 1000 times stronger than hatred.