" The reasons vary concerning why we tell ourselves we’re not ready for a given task or assignment. For some of us, the hesitance to act stems from past failures that have had a significant impact on our self-confidence. We fear a repeat of those experiences. For others, the tendency toward inaction stems from an aversion to struggle. They consider every struggle toward a desired outcome as evidence of a lack of competence or preparation (or both). In the next section, we’ll explore how the habit of telling yourself you’re not ready can have a negative impact on your productivity. How This Bad Habit Hurts Your Productivity First, you become less likely to take risks. Consequently, you’re prevented from enjoying the rewards that come with taking those risks. Instead, you’ll be inclined to stick to tasks and projects that allow you to stay within your comfort zone. They’re “safe.” They don’t require you to wonder what might happen during the course of working on them. Second, waiting until you’re 100% ready - which is to say, never taking action - prevents you from expanding your areas of competency. Because you choose to stay within your comfort zone, you confront few challenges. As such, you’re never faced with a problem that spurs you to broaden your skill set. A third way this habit affects your productivity is that it encourages you to procrastinate. By convincing yourself you’re not ready to undertake a given task, you’ll find it’s easier to rationalize postponing taking action. You’ll start to spend an inordinate amount of time planning and preparing. Fourth, staying in your comfort zone robs you "

― Damon Zahariades , The 30-Day Productivity Boost (Vol. 1): 30 Bad Habits That Are Sabotaging Your Time Management (And How To Fix Them!)