“It's easier to hold your principles 100 percent of the time than it is to hold them 98 percent of the time.”

Not knowing the outcome of your behavior can create problems in your confidence and identity.

Situations are often more powerful than internal desires.

By watching yourself repeatedly fail on your "commitment," your identity becomes confused as does your confidence. With lower confidence, you'll lack the wherewithal to commit fully to the decision or goal.

Robert Brault has a quote for this: “We are kept from our goal not by obstacles but by a clear path to a lesser goal.”

Motivation requires simplicity. Complexity kills motivation.

Michael Jordan has a great quotation that brings this idea together: "Once I made a decision, I never thought about it again." That's the key to building confidence. You make a decision and move forward with that decision, 100 percent.

Rather than making a decision based on what your current self wants, you could ask, "How would my future self want to remember this?" Or, "What would my future self want me to do?"

The 100 percent rule by Clayton Christensen is a very useful strategy for avoiding decision fatigue and for building confidence.