When we learn from our failures and apply what we learned to move forward, we can label that failure as a success. When you provide your example, explain the reasons behind your course of action. If you tried to fix the mistake before bringing it to the attention of your superiors, explain why. In this scenario, a good reason would be to not distract others from important matters they were dealing with, and it was simpler and less exhaustive for you to fix the mistake yourself. Go into detail about what you learned from your failures.

"Early in college, I had an overwhelming project. I suffered task paralysis, not knowing where to begin. A friend suggested I tackle the biggest aspect of the project first since that was what I felt most daunted by. It was good general advice, and I listened to it, even though this caused me to lose focus on the project's priorities. Just about every other aspect of the project held a greater priority. As a result, I didn't manage my time right and should have approached the project differently. I promised my professor I'd beat my deadline by a week. I missed that target. I delivered on time, within minutes of my deadline, but saw it as a personal failure since I didn't exceed it and meet my personal goals. I never made that mistake again, over-promising and under-delivering."