What should I tell my friend, she's being used by those closest to her for money?

you sound like a really concerned friend, i suggest you show her this, show her exactly what you wrote, and tell her to explain what she is doing for them to her family and boyfriend. tell her to say to them "i can't let you guys hold me back anymore, i'll give you 2 months before i stop supporting you." i mean, they ARE adults, if they are just gonna waste all of HER money on drugs and beer, then they don't deserve her help, they can get out and find jobs just like the rest of us, or risk being homeless (which they would be, without her there to help them).