I think my friend is dieing help!

ok my friend takes drugs smokes and drinks and she has had this really bad cough and she doesnt do much like she used to like me and her sister go and walk the dogs before she used to now she dont me and her sister only do it now she thinks that I like her sister better then her (when I like them the same) and she just yer... anyway back to the story.... to day right she was havin a smoke and then she spewed every where unlike before she never did that im very worryed bout her I wish I could help her but she wont stop drinking smoking and doing drugs plz help what is wrong with her she was going to go to the docks and she didnt cauze the show was on she is very sick why is she can someone plz help me cause I dont want her like this any more plz help
plz help me plz plz plz plz plz im down on my knees

There is nothing anybody here can do to change your friend's behavior nor is there anything you can do. She is the one that has control of where this is leading and it's up to her to change. Make sure you don't become an enabler and prolong her dealing with her problems.

tell someone who can help convince her. if she's underage, tell an adult and get her to the hospital

tell her that you dont want to be around her if she wont change, and let her know that if she is willing to change than you will help, but be strict and stick to your answer no mater what. if she wont change move on but pray for her.