Opinions expressed by Entrepreneur contributors are their own. Key Takeaways The most effective leaders approach regret with humility. They use it to make better future decisions, sharpen their judgment and improve their leadership skills. Learning from regret requires discipline — soliciting tough feedback, owning mistakes and turning failures into learning opportunities. Even the most successful CEOs can point to decisions they wish they’d made differently. What sets great leaders apart isn’t the absence of mistakes ; it’s how they respond to them. Throughout my career, I’ve noticed that the most effective leaders approach regret with humility, using it as a tool to improve their decision-making, sharpen their judgment and hone their leadership skills. The following are some common leadership regrets and the ways great leaders learn from them to make better decisions. 1. Not being present Many CEOs regret how they spend their time. When they are at work, they think about what they should be doing at home.…