Do you know of any systems such as mind maps or flash cards for taking notes while reading technical/programming textbooks? For example, after reading two chapters of a dense textbook and taking a 1 ...
What can I do during the breaks between the stressful long study hours that would not be counterproductive?
Playing computer games during the breaks would not certainly be productive to do between the long study hours. Watching TV will also not be a good idea (it will jam the brain further, I guess). ...