Sunday-night hype is gone by Wednesday. Build something that works on Wednesday.

Plans get made by your most optimistic self and carried out by your most tired one. Sunday evening you have energy, a clean slate and no evidence yet, so you design something heroic. By midweek the real conditions arrive: a late night, a flat mood, three things nobody saw coming. A routine that only survives in good conditions was never really a routine.

Build for the worst ordinary day instead of the best one. Ask what you could still manage after a rough afternoon and make that the standard version. Anything above it becomes a bonus.