family

Try to be supportive to your sister, and let her know she can come to you for anything.

thanks.

Yes, what Edgar said is very true. Also, try not to be judgemental or authoritative. Make yourself available for advice when she asks. Siblings that can be trusted to be supportive are lifelong friends. Be a friend.

listening is the most important thing you can do.

At her age, if you talk to her and engage her, you will hear what you need to know.

listen closely, and good luck...