Do you feel guilty when you're killing time or after kill the time.

Yes, I have such experiences too, especially this year, for I set foot into senior, the last year shield against the social stress in campus. If I spend too much time playing video games, I will have a sense of guilty when I quite the game. You know, I'm a fan of War3, I feel a real void when I don't play the game, so I delete it, install it, delete again, install again, OMG! I'm weary of such pointless behaviors, so I constrain myself to view around the mylot all the time. Anyway, as I new arrival here, I do have happy time and practise my English. Now, I'm still charmed by the video game, but I have successfully decreased the times.

the best way i would suggest is to do meditation and try to keep yourself busy.. the more you are busy the better it is for you... and u keep on thinking about it rather than being depressed..