Yesterday, my mood was down. I listed the reasons why, and I discovered that I was unhappy because I was ill-disciplined. I day-dreamed too much, chitcattted and read too many newspapers. I just didn't know what to do and I was lazy... I then decided that the best way to eradicate these bad habits was to be hard-working (diligent) and disciplined. ThereforeI became so and felt happy (joyful) again.