School Internship to Seoul, Korea

Hi, I'm 22 years old this year and come from a low income family. Hence, I have never traveled before.   I was given an opportunity to go to Seoul, Korea for my internship for 5 months (Sept - Feb).   However, only airplane tickets were sponsored by my school. Thus, I have to save up for accommodation, winter clothing and expenses.   I have to save before May 2015 in order to go, even though I'm working on weekends, it's impossible for me to achieve that huge sum of amount.   I would love to have my first travelling and intern experience to Korea! Please help me, thank you in advance!