Big goals can create unnecessary pressure when they are treated like a single task. Breaking change into smaller decisions gives you more chances to succeed and more information about what actually works.
Reduce the friction around the behavior
Make helpful actions easier to start and unhelpful patterns slightly less convenient. Small changes to timing, environment, or preparation can matter more than relying on willpower.
Build from evidence, not perfection
Notice the moments when the new behavior already happens, even briefly. Those moments show you what conditions support progress and give you something concrete to repeat.