I have told her so many times that my lil sister is not my responsibility but then she's always like "you said you would help me cause you know I gotta work" the thing that Pisses me off is she got a whole husband who can help when she's at work. It's like she thinks I'm being a bitch but I feel like she is taking advantage of me!

My mother is the same way and my sister is the same age she always asks me to take care of her when I got my own kids to worry about. I finally had enough of it and one day when she asked if I can go over to baby sit her even though she's big as hell i told her no ever since then we don't talk that much anymore. You will definitely let your mother know how your feeling sooner or later it's going to come out