Doing an action once gives you small exposure to it. Now, you know how to complete it. The next few times you take action you may adjust your method, or find yourself improving your skill. Maybe after several times of taking action, you'll be faster, more skilled, or will have developed a near perfect workflow. The next step is the hardest. To keep this action consistent, you have to practice.
Repeat your action daily.
Adding an action into your routine is difficult but manageable when you focus on the small target of completing practice every day. With relentless practice, completing the action will eventually happen with ease.