So I found out today that my best friend has been using cocaine the past few weeks. She’s having a really hard time with this quarentine, and she just ended a relationship with her boyfriend of 2 years. At this point she wants to be self destructive and her dealer is giving her the drugs for free rn. She has a calculus class in 2 weeks and she promised me that she’ll stop using before the class because if she fails this class she’s behind another year in college.she’s really determined to pass this class and I believe she really wants to but I’m not sure if she’ll be able to stop. I saw her today for the first time since quarentine started and she was really restless and her leg was bouncing all the time and I just don’t know how to help her stop using or if she’ll even be able to, and how to help her stop these self destructive behaviors. I don’t know anything about cocaine so I was hoping you guys could help.