What city are you located in? If New York, check out jewish press, hamodia, luach. lakewood, jewish press, hamodia, luach. Chicago, achdus bulletin and likutei peshatim. Other out of town cities may have their own weekly bulletin. Pretty much all places with a sizable Jewish population have a place that offers free job placement services for unemployed Jews. You need to network with adults and other friends of yours meaning, make sure everyone you know knows you are job searching. Also be open minded, that way, you are more likely to a job faster at your age.