(FORBES) — A new study shows that college students need to be doing a lot more to set themselves up for a job after college. According to the report, conducted by career website AfterCollege from a March survey of 600 college students, 79% of students have done at least one internship in the past six months, but 57% of those internships were unpaid and 76% did not result in a job offer.

AfterCollege did the survey in conjunction with Millennial Branding, a one-man consultancy run by Dan Schawbel, 29, who bills himself as a Gen Y research and consulting firm. Schawbel’s clients include American Express, Monster and NBCUniversal.

He knows from his own experience how tough it can be to get a job after graduation. He did eight internships while he was a student at Bentley University in Waltham, Mass., before setting his sights on a marketing job for tech giant EMC. It took him eight months until he landed a position. I asked Schawbel for his opinion on what the survey shows about the mistakes student job seekers are making. He ticked off five things:

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