Hi, Eloh, do you think you might be addicted to the Internet?
Maybe you can take your books with you to a place where you have less handy access to computers. Then make sure to do things that help keep your mind on your textbook, such as writing notes, quizzing yourself along the way, stopping when you encounter a new vocabulary word and thinking of a way you can remember it (such as associating it with something memorable to you), etc.
Are there any study books that go along with the texts?
Maybe you can even go to the school's study center, if it has one and ask a tutor to help you go throught the chapters.
Hope these ideas might get you started, anyway.....