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Footage of busy city streets on a rainy day, with people rushing to their destinations under colorful umbrellas.

A person enters from the left, walks, sits in a box, and undergoes a transformation from sadness to happiness before exiting to the right.

习惯可以改变一个人，好的习惯让我们变得更好，坏的习惯让我们不由自主。如何养成好的习惯，改变自己？