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 Didn't fall asleep very early yesterday. Well, around 2. Got up around 7 to have breakfast, then returned to my bed. But didn't fall asleep, so watched the cooking course and read the UI design book. Got up at noon to have lunch, then played piano for a while. Returned to my study room afterward, worked on adding something like lambda expression. Completed 10 pomodoroes today - four for work and six for learning.