Often, people think that when they make a decision, they must live with the results for the rest of their life. The truth is that decisions are temporary stepping stones toward more decisions. Look at your decisions as temporary bridges to the next step in your life. If things don't work out as a result of your decision, think of the knowledge that you will have gained. Think of how that knowledge will help you to make better decisions in the future.
Decisions are the same.
Think beyond the present. Think of consequences that may happen and prepare for alternative actions. If you can't live with a potential outcome, then don't choose that option. In the end, we each must learn to make our own decisions. While well-meaning parents want to protect their children from the mistakes they made, what they forget is that the wisdom they now have is a result of the decisions they have made in the past and what they have learned from those decisions.