A new phone wallpaper won’t change your life. A new bedtime might.

There is a pull toward changes you can see immediately, because they feel like progress and cost nothing. A new wallpaper, a new notebook, a cleared-out folder: all visible, all done in a minute, all gone by Thursday. The changes that actually move your week are dull, invisible from outside, and take weeks to show anything.

Choose one boring input and leave the decorating alone. Go to bed at the same time for seven nights, or eat something before first period. Then see whether the week feels different.