what should i do?

<p>So I started an unpaid internship like 2 months ago, I took it for a course credit. The course credit is for 3 months only, but during my interview i said that I could work for the company for a year because the duration of the program that I applied for was for a year. But ever since I started I realized that I'm not doing what I thought I would be doing. My first day, the only "training" that I got was from a book that I was supposed to read and that was it. My supervisor doesn't really talk to me and doesn't give me things to do. If I'm not doing anything he looks like he doesn't care but really he criticize me in my midterm review. During the review he told me that he doesn't like it when I'm not doing anything and that I shouldn't come to him to ask if there's work for me. I understand that I should be more proactive and probably come up with something but I don't feel comfortable enough to present new ideas to him because he looks like he's annoyed when I talk to him. I was thinking of quitting after my semester is done instead of the whole year but I feel like if I leave I'll be a quitter and a failure. I don't want to sound ungrateful and spoiled but I just don't feel comfortable </p>