I have been having this problem for many years now, but it is really starting to bother me of late, as I don't think I can get away with it in college like I did in school. I don't have any problems concentrating on my studies when my exams are nearby. With very limited time in my hands, I don't have much difficulty in utilizing it to the best of my ability. However, if I have say, 2 or 3 weeks off, with plenty of time to study, my concentration just seems to disappear. It is not even the case of me slacking off, I just sit with the book in front of my eyes and try to focus on it, but my mind keeps wandering. I become frustrated, and this eventually leads to me just abandoning the attempt to study, after which I probably just go and sit in front of my computer for the rest of the day. Even when I force myself to study, with all distractions kept away, I still can't seem to focus. I finally start waking up when the exams are just a few days away, but by then, it becomes extremely difficult for me to make up for all the lost time. This has happened to me countless times before, but I can't seem to avoid this no matter how hard I try. Any suggestions to help prevent this from happening again?