Study Abroad in Japan

Since I started learning Japanese I've been fascinated with the language and culture. I have always dreamed of going to Japan, but since I have learned more in class, I realized I would like to have a career integrating Japanese language. The program I am looking to attend is with CIEE study abroad and is $6,700 plus you must buy your own plane ticket and provide spending money. I was lucky enough to receive a full scholarship, therefore, I only need to come up with the airfare and spending money. I come from a low income family with two little sisters so this is not within our financial ability. Plane tickets to Japan are around $2000 during the summer so that is the minimum amount I am trying to accomplish by April. I am 17 years old and in high school so I still need to find a job to raise some extra money. I believe with this experience I can get a better understanding on Japanese culture than my school can provide. Anything helps thank you for your consideration.