a little background....I'm 20 years old and am currently living at home with both my parents and my sister (17) going to a satellite campus of Purdue University. I have two more years after this one to finish my bachelors in business marketing. my parent's make decent money, but unfortunately for me they did not make any financial plans for my college education when I was young, which is why I'm stuck at this satellite campus instead of going to the main campus. I have been forced to take out student loans to cover tuition. I work part-time, but only to put a little extra cash in my pocket. here's the problem, in the past year or so, my sister has been hanging out with the wrong crowd and has got into drugs. lately, I've also noticed that some of my money is starting to go missing. my parents took her to a psychologist about 6 months ago....and after many thousands of dollars wasted, she is back to her old self again. she constantly lies to them, stays out doing who knows what, and can't even hold a part-time job (she also quit HS and got her GED). my parents won't take full responsibility and send her away to a boot camp or some place to straighten her out and it's clear taking her to a doctor did nothing. it's gotten to the point where I just can't stand living here at home anymore. I get along with my parents just fine, but the arguing and constantly quarrelling between her and parents/me is too much. lately I've been thinking of moving out. if I did, this would force me to quit school. my only other option is to wait until next fall, take out even more loans and move down to the main campus and room with a friend (which would ultimately put me about 40-50k in debt when I graduate). I honestly don't know what to do. I don't know how much longer I can stand living here with her. any input?