Break down a habit into its cue, routine and reward, and see it laid out as the loop that keeps it running, whether you want to build it or break it.
Most habits run on autopilot because the cue, routine and reward have become tightly linked through repetition. Writing the loop down forces you to notice the specific trigger and payoff behind a behavior you might otherwise describe only vaguely as "I just do it without thinking." Once the loop is visible, you have two practical levers: change the routine while keeping the same cue and a similar reward, or make the cue itself harder to encounter in the first place.
A vague cue like "boredom" is harder to work with than a specific one like "sitting down after dinner."
If the reward is genuinely valuable, changing only the routine is usually more sustainable than trying to remove the reward entirely.
It is the basic structure behind most habits: a cue triggers a routine, which produces a reward, and that reward makes you more likely to repeat the routine the next time the cue appears.
Once you can name the exact cue and reward behind a habit, you can try changing the routine while keeping the same cue and a similar reward, which is often easier than trying to remove the habit outright.
Whatever feeling or outcome you actually get from the routine, even if it is small, like relief, distraction or a sense of progress.
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