You start a new routine full of motivation, keep it up for a week or two, and then one busy or difficult day breaks the chain and it quietly disappears. The problem usually isn't you: it's relying on willpower instead of a system. This free checklist turns habit building into a clear 90-day plan, with simple steps that help new behaviors run almost on autopilot, even on your worst days. Each step tells you exactly what to do and why it matters.

Audit Your Current Reality (Days 1-7)

Look at a routine that didn't stick, map the cue, routine and reward behind one habit you want to change, and list the daily actions you already do without thinking. These become the anchors for your new habits.

Engineer Your Environment (Days 8-21)

Make good habits easier and bad habits harder by adjusting friction, and set up simple visual cues each evening, like gym shoes by the door or a book on your pillow.

Build Habit Stacks (Days 22-45)

Use the formula "After I [current habit], I will [new 2-minute habit]", shrink each habit to a tiny version, practise one stack for 14 days and only then grow it.

Stay on Track and Scale Up (Days 46-90)

Follow the "never miss twice" rule, prepare if-then plans for travel or busy weeks, recover from slips without guilt, write an identity statement, add a second stack and design a minimum routine for chaotic days.