I think it sounds like depression, like Lynn said. You said you did well in high school because you can people 'pushing' you to do the stuff...do you think you could join a study group or something like that? Maybe if you had a more structured study environment and "competition" you may be more inclined to get things done. When I was in college my best friend was in the same field as me and we took many/most of the same classes. This provided both of us someone to compete with and to work with on things, especially the hard stuff. We were always the top 2 in the class and I think we helped each other achieve this by doing our work together, for the most part. Also, (I'm not sure if this is healthy competition or not) it would burn me up to think of her getting "ahead" of me, so I worked to make sure she didn't. Does that make any sense? Is there someone or a group of people in your field you could do homework with daily, or every few days? And Lynn's suggestion of the calendar is something I also did, it can be very helpful, as is the reward system.