I'm so lost i don't know what to do?sk?

you are in the exact same scene as i am. my ex bestie does drugs now and a whole bunch of bad stuff but she didn't listen to me.. i think you should straight up just tell her everything u just said on here. and if she doesn't listen then don't bug her again! im not saying don't do anything maybe tell a family member for deeper advice. but if u keep nagging her it will make her wanna do it more. and u don't want that. i hope this helps and good luck!! :)