Re-viewing across time axes: my habit

Subject: choose one habit you repeat almost daily. Examples: an hour of YouTube after work, 30 minutes of social media before bed, the coffee you buy every morning, the 11 p.m. late-night snack. It must be a real habit of yours, not a hypothetical one.

State your chosen habit in one line at the top, then look at it again from three time axes. (1) Day axis: within today, what does this habit do for you? (2) Year axis: repeated about 365 times, what accumulates in your time, money, and body? (Estimate with numbers.) (3) Decade axis: ten years on with this habit maintained, what about you has changed? For each axis, write how your judgment on 'should I keep doing this?' changes, and in the final line, write one prediction you can check within a year in the form 'by when / what / will be in what state.'