Hi @Zahikusa, Whilst I was reading your post I sensed that you're frustrated with your step sister but at the same time love her so much that you want to guide her to be a responsible adult. Teenage years are quite difficult, they are more interested in their friends than parents, siblings etc. They also like to experiment with drugs, alcohol and unsafe sex. The best way to handle any teenager is to Talk to them and to listen, Loads of listening with no Judgement, even though you may not agree with their decisions. Offer advice calmly or tell her how you may of handled a similar experience. If she pushes you away and wont listen, just remember that a teenager whose behaviour pushes you away is a teenager who needs connection before anything else. I encourage you to have a family meeting like @sunflowermom suggested but this needs to be planned carefully, as you don't want her to feel attacked and that you don't care about her. Remind her that you love her and if you didn't you wouldn't be talking to her about your concerns.    All the best and keep us updated.        ,  I  ... View more